APA (7th ed.) Citation

Preston-Mafham, R., & Preston-Mafham, K. (1991). Cacti: The illustrated dictionary. Blandford.

Chicago Style (17th ed.) Citation

Preston-Mafham, Rod, and Ken Preston-Mafham. Cacti: The Illustrated Dictionary. London: Blandford, 1991.

MLA (9th ed.) Citation

Preston-Mafham, Rod, and Ken Preston-Mafham. Cacti: The Illustrated Dictionary. Blandford, 1991.

Warning: These citations may not always be 100% accurate.