Cita APA (7a ed.)

Preston-Mafham, R. (1997). Cacti: The illustrated dictionary. Timber Press.

Cita Chicago Style (17a ed.)

Preston-Mafham, Rod. Cacti: The Illustrated Dictionary. Portland, Or: Timber Press, 1997.

Cita MLA (8a ed.)

Preston-Mafham, Rod. Cacti: The Illustrated Dictionary. Timber Press, 1997.