Cita APA (7th ed.)

Librero, A. R., Valmayor, R. V., & Perez, M. L. (1987). Research evaluation systems in agriculture and natural resources in the Philippines. Philippine Council for Agriculture, and Natural Resources Research and Development.

Cita Chicago (17th ed.)

Librero, Aida R., Ramon V. Valmayor, i Maripaz L. Perez. Research Evaluation Systems in Agriculture and Natural Resources in the Philippines. Los Baños, Laguna: Philippine Council for Agriculture, and Natural Resources Research and Development, 1987.

Cita MLA (9th ed.)

Librero, Aida R., et al. Research Evaluation Systems in Agriculture and Natural Resources in the Philippines. Philippine Council for Agriculture, and Natural Resources Research and Development, 1987.