Rojas-Cabezas, E. (2016). Costa Rica's prohibitions and restrictions on agricultural pesticides use and marketing.
استشهاد بنمط شيكاغوRojas-Cabezas, Edgar. Costa Rica's Prohibitions and Restrictions On Agricultural Pesticides Use and Marketing. 2016.
MLA استشهادRojas-Cabezas, Edgar. Costa Rica's Prohibitions and Restrictions On Agricultural Pesticides Use and Marketing. 2016.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.