Baylen, T. S. 1., & Naval, J. C. 1. (2001). Salamin ng kalikasan. Quezon City: Ateneo de Manila University Press.
Chicago Style CitationBaylen, Teo S. 1904-1990., and Jimmuel Costelo 1963- Naval. Salamin Ng Kalikasan. Quezon City: Ateneo de Manila University Press, 2001.
Deismireacht MLABaylen, Teo S. 1904-1990., and Jimmuel Costelo 1963- Naval. Salamin Ng Kalikasan. Quezon City: Ateneo de Manila University Press, 2001.
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