Librero, A. R., Valmayor, R. V., & Perez, M. L. (1987). Research evaluation systems in agriculture and natural resources in the Philippines. International Development Research Centre.
芝加哥风格引文Librero, Aida Recto, Ramon V. Valmayor, 与 Maripaz L. Perez. Research Evaluation Systems in Agriculture and Natural Resources in the Philippines. Los Banos, Laguna: International Development Research Centre, 1987.
MLA引文Librero, Aida Recto, et al. Research Evaluation Systems in Agriculture and Natural Resources in the Philippines. International Development Research Centre, 1987.
警告：这些引文格式不一定是100％准确.