APA aipamena

Piedra Constantino, R. d. l. (1997). Evaluation of sustainable production systems in hillsides, La Fraylesca, Chiapas, México.

Chicago Style aipamena

Piedra Constantino, R. de la. Evaluation of Sustainable Production Systems in Hillsides, La Fraylesca, Chiapas, México. 1997.

MLA aipamena

Piedra Constantino, R. de la. Evaluation of Sustainable Production Systems in Hillsides, La Fraylesca, Chiapas, México. 1997.

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