Cita APA (7th ed.)

Philippines. Food and Nutrition Research Institute, Villavieja, G. M., Tanchoco, C., & Kuizon, M. D. (1989). 1987 nutrition survey of Region I: Ilocos. FNRI.

Cita Chicago (17th ed.)

Philippines. Food and Nutrition Research Institute, Gracia M. Villavieja, Celeste Tanchoco, i Miriam D. Kuizon. 1987 Nutrition Survey of Region I: Ilocos. [Taguig]: FNRI, 1989.

Cita MLA (9th ed.)

Philippines. Food and Nutrition Research Institute, et al. 1987 Nutrition Survey of Region I: Ilocos. FNRI, 1989.