Dyfyniad APA

Morales Abarca, L. F., & Castillo Valerio, D. (2018). Production and productivity of banana and coffee crops in Costa Rica from 1980 to 2010.

Dyfyniad Arddull Chicago

Morales Abarca, Luis Fernando, y Diana Castillo Valerio. Production and Productivity of Banana and Coffee Crops in Costa Rica From 1980 to 2010. 2018.

Dyfyniad MLA

Morales Abarca, Luis Fernando, y Diana Castillo Valerio. Production and Productivity of Banana and Coffee Crops in Costa Rica From 1980 to 2010. 2018.

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