APA-referens (7:e uppl.)

Serafico, M. E., Espinoza, M. M., Perlas, L. A., & Tanchoco, C. C. (2012). Ecological footprint of the National Capital Region households: Bridging the gap between nutrition and environment. Philippine Journal of Science.

Chicago-referens (17:e uppl.)

Serafico, Michael E., Marilen M. Espinoza, Leah A. Perlas, och Celeste C. Tanchoco. "Ecological Footprint of the National Capital Region Households: Bridging the Gap Between Nutrition and Environment." Philippine Journal of Science 2012.

MLA-referens (9:e uppl.)

Serafico, Michael E., et al. "Ecological Footprint of the National Capital Region Households: Bridging the Gap Between Nutrition and Environment." Philippine Journal of Science, 2012.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.