Trích dẫn APA

Tonjes, J. J. (1994). The pineapple in the atlantic zone of Costa Rica: A study on the sustainability of the cropping system of pineapple in the Atlantic Zone of Costa Rica.

Trích dẫn kiểu Chicago

Tonjes, J. J. The Pineapple in the Atlantic Zone of Costa Rica: A Study On the Sustainability of the Cropping System of Pineapple in the Atlantic Zone of Costa Rica. 1994.

Trích dẫn MLA

Tonjes, J. J. The Pineapple in the Atlantic Zone of Costa Rica: A Study On the Sustainability of the Cropping System of Pineapple in the Atlantic Zone of Costa Rica. 1994.

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