Dyfyniad APA

Álvarez, P., & Cárdenas, H. (2006). Situation of corn and bean production at Pejibaye of Perez Zeledon, and Pilas of Buenos Aires, Costa Rica.

Dyfyniad Arddull Chicago

Álvarez, Pablo, y Hernando Cárdenas. Situation of Corn and Bean Production At Pejibaye of Perez Zeledon, and Pilas of Buenos Aires, Costa Rica. 2006.

Dyfyniad MLA

Álvarez, Pablo, y Hernando Cárdenas. Situation of Corn and Bean Production At Pejibaye of Perez Zeledon, and Pilas of Buenos Aires, Costa Rica. 2006.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.