एपीए उद्धरण

Dressler, R. L. (1967). Observations on Orchids and Euglossine Bees in Panama and Costa Rica.

शिकागो स्टाइल उद्धरण

Dressler, Robert L. Observations On Orchids and Euglossine Bees in Panama and Costa Rica. 1967.

एमएलए उद्धरण

Dressler, Robert L. Observations On Orchids and Euglossine Bees in Panama and Costa Rica. 1967.