APA (7th ed.) Citation

Margraf, J., Voggesberger, M., & Milan, P. P. (1994). Limnology of Ifugao rice terraces, Philippines.

Chicago Style (17th ed.) Citation

Margraf, Josef, Monica Voggesberger, and Paciencia P. Milan. Limnology of Ifugao Rice Terraces, Philippines. 1994.

MLA (9th ed.) Citation

Margraf, Josef, et al. Limnology of Ifugao Rice Terraces, Philippines. 1994.