APA

Smith E., Hoeksema S., Fredrickson B. & Loftus G. (2003). Introduction to Psychology. LONDON: Harcourt Brace Jovanovich.

Chicago

Smith Edward, Hoeksema Susan, Fredrickson Barbara and Loftus Geoffrey. 2003. Introduction to Psychology. LONDON: Harcourt Brace Jovanovich.

Harvard

Smith E., Hoeksema S., Fredrickson B. and Loftus G. (2003). Introduction to Psychology. LONDON: Harcourt Brace Jovanovich.

MLA

Smith Edward, Hoeksema Susan, Fredrickson Barbara and Loftus Geoffrey. Introduction to Psychology. LONDON: Harcourt Brace Jovanovich. 2003.