APA (7th ed.) Citation

Köhlein, F., & Menzel, P. (1994). Color encyclopedia of garden plants and habitats. Timber Press.

Chicago Style (17th ed.) Citation

Köhlein, Fritz, and Peter Menzel. Color Encyclopedia of Garden Plants and Habitats. Portland, Or.: Timber Press, 1994.

MLA (9th ed.) Citation

Köhlein, Fritz, and Peter Menzel. Color Encyclopedia of Garden Plants and Habitats. Timber Press, 1994.