एपीए उद्धरण

Hauke, R. L. (1967). The Natural History of Equisetum in Costa Rica.

शिकागो स्टाइल उद्धरण

Hauke, Richard L. The Natural History of Equisetum in Costa Rica. 1967.

एमएलए उद्धरण

Hauke, Richard L. The Natural History of Equisetum in Costa Rica. 1967.