an original writing, as a document, record, or diary, that supplies an authoritative basis for future writing, study, evaluation, etc.
a volume containing a small collection of such writings, usually on a specific subject, used in research.
Origin of source book
An Americanism dating back to 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for source book
It is further planned to publish a source-book on Church history to supplement the texts.The Rise of the Mediaeval Church|Alexander Clarence Flick