González Pérez, E. (2011). Bibliometric study of the work of Costa Rican naturalist Anastasio Alfaro and Henri Pittier in journals between 1887 and 1946 Costa Rican.
استشهاد بنمط شيكاغوGonzález Pérez, Esteban. Bibliometric Study of the Work of Costa Rican Naturalist Anastasio Alfaro and Henri Pittier in Journals between 1887 and 1946 Costa Rican. 2011.
MLA استشهادGonzález Pérez, Esteban. Bibliometric Study of the Work of Costa Rican Naturalist Anastasio Alfaro and Henri Pittier in Journals between 1887 and 1946 Costa Rican. 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.