APA (7th ed.) Citation

De Jesus, L. M., & Perez, M. C. C. S. (1969). Biological investigations. Alemar-Phoenix.

Chicago Style (17th ed.) Citation

De Jesus, Luisa M., and Maria Carmen Clemente Sister Perez. Biological Investigations. Quezon City: Alemar-Phoenix, 1969.

MLA (9th ed.) Citation

De Jesus, Luisa M., and Maria Carmen Clemente Sister Perez. Biological Investigations. Alemar-Phoenix, 1969.