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.
Citazione stile Chigago Style (17a edizione)Librero, Aida Recto, Ramon V. Valmayor, e Maripaz L. Perez. Research Evaluation Systems in Agriculture and Natural Resources in the Philippines. Los Banos, Laguna: International Development Research Centre, 1987.
Citatione MLA (9a ed.)Librero, Aida Recto, et al. Research Evaluation Systems in Agriculture and Natural Resources in the Philippines. International Development Research Centre, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.