Παραπομπή APA

Ramirez, O., & 1994., S. P. P. P. i. D. C. T. (. R. 2. F. (1994). The plant protection policy situation in Central America.

Παραπομπή Chicago Style

Ramirez, O., και Seminar/Workshop Plant Protection Policies in Developing Countries Turrialba (Costa Rica) 21 Feb 1994. The Plant Protection Policy Situation in Central America. 1994.

Παραπομπή MLA

Ramirez, O., και Seminar/Workshop Plant Protection Policies in Developing Countries Turrialba (Costa Rica) 21 Feb 1994. The Plant Protection Policy Situation in Central America. 1994.

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