Roldan Fernandez Books

Wiley federal accounting handbook

By Jeffrey W. Green, Cornelius E. Tierney, Kearney Company, Edward F. Kearney, Roldan Fernandez

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Federal Government Auditing

By Jeffrey W. Green, Cornelius E. Tierney, Kearney Company, Edward F. Kearney, Roldan Fernandez

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OMB Circular A 123 and Sarbanes Oxley

By Jeffrey W. Green, Cornelius E. Tierney, Kearney Company, Edward F. Kearney, Michael J. Ramos, Roldan Fernandez

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OMB Circular A 123 and Sarbanes Oxley

By Cornelius E. Tierney

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This comprehensive book features a step-by-step approach for engagement performance and provides controls guidance for Federal government entities as set forth in Section 404 of Sarbanes-Oxley and...

Federal Government Auditing

By Jeffrey W. Green, Cornelius E. Tierney, Edward F. Kearney, Roldan Fernandez

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OMB Circular A 123 and Sarbanes Oxley

By Jeffrey W. Green, Cornelius E. Tierney, Edward F. Kearney, Roldan Fernandez, Michael J. Ramos

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Federal Accounting Handbook

By Jeffrey W. Green, Cornelius E. Tierney, Kearney Company, Edward F. Kearney, Roldan Fernandez

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Wiley Federal Government Auditing

By Jeffrey W. Green, Edward F. Kearney, Roldan Fernandez, David M. Zavada

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Wiley Federal Government Auditing

By Jeffrey W. Green, Edward F. Kearney, Roldan Fernandez, David M. Zavada

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.