APA استشهاد

Sittenfeld Appel, A., Raventós Vorst, H., Cruz, R., & Gutiérrez, J. M. (1991). DNase activity in Costa Rican crotaline snake venoms: Quantification of activity and identification of electrophoretic variants.

استشهاد بنمط شيكاغو

Sittenfeld Appel, Ana, Henriette Raventós Vorst, R. Cruz, و José María Gutiérrez. DNase Activity in Costa Rican Crotaline Snake Venoms: Quantification of Activity and Identification of Electrophoretic Variants. 1991.

MLA استشهاد

Sittenfeld Appel, Ana, Henriette Raventós Vorst, R. Cruz, و José María Gutiérrez. DNase Activity in Costa Rican Crotaline Snake Venoms: Quantification of Activity and Identification of Electrophoretic Variants. 1991.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.