APA

Spencer J., Pruss A., . (1995). The professional secretary volume 2: management skills. New York: Casell Publ.

Chicago

Spencer John, Pruss Adrian, . 1995. The professional secretary volume 2: management skills. New York: Casell Publ.

Harvard

Spencer J., Pruss A., . (1995). The professional secretary volume 2: management skills. New York: Casell Publ.

MLA

Spencer John, Pruss Adrian, . The professional secretary volume 2: management skills. New York: Casell Publ. 1995.