E. G Kovalenko Books

English Russian mathematical dictionary In two volumes 75 000 terms Anglo Russkij matematitshheskij slovar v 2 tomakh

By E. G. Kovalenko

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English Russian Mathematical Dictionary in 2 Vol., 75 000 terms

By E. G Kovalenko

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In compiling the dictionary, which took more than 10 years, the author studied about 10,000 dictionaries, reference books, encyclopaedias, monographs, educational supplies, terminological standards...

English Russian Dictionary. Living Language new terms serie. Project management controlling Anglo Russki slovar upravlenie projektami

By E. G. Kovalenko

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English Russian ecology dictionary Anglo Russki ekologicheskyi slovar

By Y.G. Kovalenko, E. G. Kovalenko

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English-Russian Dictionary of Ecology contains more than 35,000 terms and phrases on major fields of knowledge and practical activities connected with ecology and environmental protection: biospher...

Series Live Language N8

By E. G. Kovalenko

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New English Russian dictionary Oil Gaz in 2 bands 52 000 terms

By Y.G. Kovalenko, E. G. Kovalenko

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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.