Cita APA

Gilbert, P. A. 1. (1951). Orchids: Their culture and classification. Sydney, Australia: The Shepherd Press.

Citación estilo Chicago

Gilbert, Percy Albert 1883-1960. Orchids: Their Culture and Classification. Sydney, Australia: The Shepherd Press, 1951.

Cita MLA

Gilbert, Percy Albert 1883-1960. Orchids: Their Culture and Classification. Sydney, Australia: The Shepherd Press, 1951.