Kossoff, P., Hernández, F., Vekoh-Pardo, M. V., & Zimmerman, M. (1989). Urban helminthiasis in two socioeconomically distinct Costa Rican communities.
استشهاد بنمط شيكاغوKossoff, Peter, Francisco Hernández, Marieta Visconti Vekoh-Pardo, و Michael Zimmerman. Urban Helminthiasis in Two Socioeconomically Distinct Costa Rican Communities. 1989.
MLA استشهادKossoff, Peter, Francisco Hernández, Marieta Visconti Vekoh-Pardo, و Michael Zimmerman. Urban Helminthiasis in Two Socioeconomically Distinct Costa Rican Communities. 1989.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.