Ramirez, O., & 1994., S. P. P. P. i. D. C. T. (. R. 2. F. (1994). The plant protection policy situation in Central America.
استشهاد بنمط شيكاغوRamirez, O., و Seminar/Workshop Plant Protection Policies in Developing Countries Turrialba (Costa Rica) 21 Feb 1994. The Plant Protection Policy Situation in Central America. 1994.
MLA استشهادRamirez, O., و Seminar/Workshop Plant Protection Policies in Developing Countries Turrialba (Costa Rica) 21 Feb 1994. The Plant Protection Policy Situation in Central America. 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.