dct:source

[meganrwong]

Noting from email @DrShorthair 26042021 for resolution by Megan
Might be worth using a link instead of just the ISBN number.
The Publisher’s page for the book is https://www.publish.csiro.au/book/6418
And this gets a JSON description of the Google books version https://www.googleapis.com/books/v1/volumes?q=isbn:9780643102187
Or we could use the ISBN URN scheme – i.e. these two

URN:ISBN:978-0-643-10218-7
URN:ISBN:978-0-909605-68-1

See https://www.iana.org/assignments/urn-formal/isbn and https://www.myidentifiers.com.au/identify-protect-your-book/isbn/converter-tool

I’m looking here for a more formal/universal notation for ISBN.