APA
Schultz D. P., . (1969). History of modern psychology. New York: Academic Press.
Chicago
Schultz Duane P, . 1969. History of modern psychology. New York: Academic Press.
Harvard
Schultz D. P., . (1969). History of modern psychology. New York: Academic Press.
MLA
Schultz Duane P, . History of modern psychology. New York: Academic Press. 1969.