APA (7th ed.) Citation

Pancho, J. V., & Obien, S. R. (1995). Manual of ricefield weeds in the Philippines. Philippine Rice Research Institute.

Chicago Style (17th ed.) Citation

Pancho, Juan Valles, and S. R. Obien. Manual of Ricefield Weeds in the Philippines. Munoz, Nueva Ecija: Philippine Rice Research Institute, 1995.

MLA (9th ed.) Citation

Pancho, Juan Valles, and S. R. Obien. Manual of Ricefield Weeds in the Philippines. Philippine Rice Research Institute, 1995.