Παραπομπή APA

Vega, S., & Maroto, I. M. (1984). Pesticides for restricted use in the United States are freely imported into Costa Rica.

Παραπομπή Chicago Style

Vega, Sileny, και Irma M. Maroto. Pesticides for Restricted Use in the United States Are Freely Imported Into Costa Rica. 1984.

Παραπομπή MLA

Vega, Sileny, και Irma M. Maroto. Pesticides for Restricted Use in the United States Are Freely Imported Into Costa Rica. 1984.

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