I was helping a friend of mine who studies psychology to find some journals that were referenced in a book. The references were just the names of the authors and the date the journal was published, eg (DIGMAN, INOUYE, 1986). No other information. This made it really tough to find the journals. I was used to the type of refference that goes like this: David M. Pozar, Microwave Engineering, Addison-Wesley, 1990
She told me that this type of reference was common in psychology books. Why?