Παραπομπή APA

FW Oliver. (1991). The natural history of plants-Vol.1. Printwell.

Παραπομπή Chicago Style

FW Oliver. The Natural History of Plants-Vol.1. Jaipur: Printwell, 1991.

Παραπομπή MLA

FW Oliver. The Natural History of Plants-Vol.1. Printwell, 1991.