APA aipamena

Kossoff, P., Hernández, F., Vekoh-Pardo, M. V., & Zimmerman, M. (1989). Urban helminthiasis in two socioeconomically distinct Costa Rican communities.

Chicago Style aipamena

Kossoff, Peter, Francisco Hernández, Marieta Visconti Vekoh-Pardo, y Michael Zimmerman. Urban Helminthiasis in Two Socioeconomically Distinct Costa Rican Communities. 1989.

MLA aipamena

Kossoff, Peter, Francisco Hernández, Marieta Visconti Vekoh-Pardo, y Michael Zimmerman. Urban Helminthiasis in Two Socioeconomically Distinct Costa Rican Communities. 1989.