by Philip Zimbardo
by Sigmund Freud, Sigmund Freud
by Sheila Walsh
by Jaydee Tumambing, Jeffrey Scott Mio, Lori Barker-Hackett
by Darryl B. Hill, Michael J. Kral
by Phillip T. Slee, Grace Skrzypiec
by Carl Walker, Paul Hanna, Angie Hart