एपीए उद्धरण

Calderón, J., Alán, E., & Barrantes, U. (2006). Structure, size and production of weed seeds in the humid tropic.

शिकागो स्टाइल उद्धरण

Calderón, Juan, Elizabeth Alán, और Uriel Barrantes. Structure, Size and Production of Weed Seeds in the Humid Tropic. 2006.

एमएलए उद्धरण

Calderón, Juan, Elizabeth Alán, और Uriel Barrantes. Structure, Size and Production of Weed Seeds in the Humid Tropic. 2006.