Cita APA (7a ed.)

Marcella, R., & Maltby, A. (2000). The Future of classification. Gower.

Cita Chicago Style (17a ed.)

Marcella, Rita, y Arthur Maltby. The Future of Classification. Aldershot, Hants, Eng: Gower, 2000.

Cita MLA (9a ed.)

Marcella, Rita, y Arthur Maltby. The Future of Classification. Gower, 2000.