National Seminar Workshop on Research in the Uplands VISCA, Leyte, Ponce, E. R., Salazar, R. C., & Zerrudo, A. B. L. (1989). Sustaining upland development: Selected papers. De La Salle University Research Center.
芝加哥风格引文National Seminar Workshop on Research in the Uplands VISCA, Leyte, Eliseo R. Ponce, Robert C. Salazar, 与 Alma Bella L. Zerrudo. Sustaining Upland Development: Selected Papers. Manila: De La Salle University Research Center, 1989.
MLA引文National Seminar Workshop on Research in the Uplands VISCA, Leyte, et al. Sustaining Upland Development: Selected Papers. De La Salle University Research Center, 1989.
警告：这些引文格式不一定是100％准确.