Cita APA (7a ed.)

Heller, A. (2009). A theory of feelings (Second edition.). Lexington Books.

Cita Chicago Style (17a ed.)

Heller, Agnes. A Theory of Feelings. Second edition. Lanham, Maryland ; Plymouth, England: Lexington Books, 2009.

Cita MLA (9a ed.)

Heller, Agnes. A Theory of Feelings. Second edition. Lexington Books, 2009.