Orchids and their cultivation

MLA

Sander, David, and E Cooper. Orchids and Their Cultivation. London: Blandford Press, 1951.

APA

Sander, D., & Cooper, E. (1951). Orchids and their cultivation. London: Blandford Press.

Chicago

Sander, David, and E Cooper. Orchids and Their Cultivation. London: Blandford Press, 1951.