एपीए उद्धरण

Wille, A. (1962). A New Species of Stingless Bee (Meliponini from Costa Rica.

शिकागो स्टाइल उद्धरण

Wille, Alvaro. A New Species of Stingless Bee (Meliponini From Costa Rica. 1962.

एमएलए उद्धरण

Wille, Alvaro. A New Species of Stingless Bee (Meliponini From Costa Rica. 1962.