Cita APA (7th ed.)

Thomas, A. R. (1995). Classification: Options and opportunities. Haworth Press.

Cita Chicago (17th ed.)

Thomas, Alan R. Classification: Options and Opportunities. New York: Haworth Press, 1995.

Cita MLA (9th ed.)

Thomas, Alan R. Classification: Options and Opportunities. Haworth Press, 1995.