An International Standard Book Number is not assigned to a reprinting of a book due to it being identical to its source edition.
=== ISBN-10 to ISBN-13 conversion ===An ISBN-10 is converted to ISBN-13 by prepending "978" to the  ISBN-10 and recalculating the final checksum digit using the ISBN-13 algorithm
 The International ISBN Agency sometimes assigns such books ISBNs on its own initiative

