Παραπομπή APA

Joseph, J. (1982). Orchids of Nilgiris. Botanical Survey of India.

Παραπομπή Chicago Style

Joseph, J. Orchids of Nilgiris. Howra: Botanical Survey of India, 1982.

Παραπομπή MLA

Joseph, J. Orchids of Nilgiris. Botanical Survey of India, 1982.