The ISBN is often found in different locations. The location of where it is found is not relevant. The Instruction Manual, Fifth Edition 2009, tells us to use the ISBN, the SBN (Standard Book Number), or the ISSN (International Standard Serial Number), is placed on the line immediately following the copyright and reproduction notices preceded by the words Transcription of. Follow print punctuation.
When submitting the manuscript for certification, just photocopy the information from the back cover.
Hope this is helpful.