Bertel Hansen Books

Balanophoraceae Flora neotropica

By B. Hansen, Bertel Hansen

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The genus Balanophora J. R. & G. Forster

By Bertel Hansen

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Genus Ptyssiglottis (Acanthaceae)

By Bertel Hansen

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Flora of Tropical East Africa Balanophoraceae 1993 Flora of Tropical East Africa

By B. Hansen

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Flowering Plants. Eudicots

By Job Kuijt, Bertel Hansen

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In the present volume taxonomic treatments including descriptions of and keys to the families and genera for the orders Santalales and Balanophorales are offered, the former group here comprising 1...

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.