Παραπομπή 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.

Παραπομπή Chicago Style

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.

Παραπομπή 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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