P. Helliwell Books

Psoriatic Arthritis

By V. Wright, P. Helliwell, V. Wright, P. Helliwell, Guest Editors

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Part of a series of books which offer up-to-date reviews and serve as sources of current opinion, procedures and techniques in a specified field, this volume provides comprehensive coverage of psor...

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.

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