Cita APA (7th ed.)

Villanueva, L. E., Cabrera, M. I. Z., & Barba, C. V. (2001). Calcium requirements of Filipinos. Journal of the Nutritionist-Dieticians' Association of the Philippines.

Cita Chicago (17th ed.)

Villanueva, Leonora E., Ma. Isabel Z. Cabrera, i Corazon VC Barba. "Calcium Requirements of Filipinos." Journal of the Nutritionist-Dieticians' Association of the Philippines 2001.

Cita MLA (9th ed.)

Villanueva, Leonora E., et al. "Calcium Requirements of Filipinos." Journal of the Nutritionist-Dieticians' Association of the Philippines, 2001.