APA (7th ed.) Citation

Cassell, Pruss, A., & Spencer, J. (1996). The professional secretary. Cassell.

Chicago Style (17th ed.) Citation

Cassell, Adrian Pruss, and John Spencer. The Professional Secretary. London: Cassell, 1996.

MLA (8th ed.) Citation

Cassell, et al. The Professional Secretary. Cassell, 1996.