BF 1-2000
RC 400-600
1. A scholarly book is written by an expert in the discipline of psychology. And it will be written with other experts in mind.
2. A scholarly book will formally cite all of its sources. This will include in-text citations and a list of references.
3. If a book is published by a university press (Oxford University Press) or a scholarly association (American Psychological Association), then it is probably scholarly.