APA

Feldman R., . (1999). Understanding Psychology. Boston: McGraw-Hill College.

Chicago

Feldman R.S, . 1999. Understanding Psychology. Boston: McGraw-Hill College.

Harvard

Feldman R., . (1999). Understanding Psychology. Boston: McGraw-Hill College.

MLA

Feldman R.S, . Understanding Psychology. Boston: McGraw-Hill College. 1999.