Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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