Hi everyone,

I need the following textbooks:

Experimental Psychology 1- Psych 331: Statistics For behavioral Sciences by Gravetter 9th ed (6th, 7th or 8th editions are fine also)

2) Social Psychology- Psych 340: Social Psychology by Myers 10th ed 

3) Sensation and Perception-Psych 370: Sensation and Perception by Schiffman 5th edition 

I am also very interested in the older editions.

Thank you,

Celia.