MLA

Maslow, Abraham H. Toward a Psychology of Being. 2d ed. Princeton, N.J.: Van Nostrand, 1968.

APA

Maslow, A. H. (1968). Toward a psychology of being. 2d ed. Princeton, N.J.: Van Nostrand.

Chicago

Maslow, Abraham H. Toward a Psychology of Being. 2d ed. Princeton, N.J.: Van Nostrand, 1968.