APA
Alvarez A. A., Eisma M. A. J., Herico W. T., Mendez E. A., Ozaeta A. F., Tito N. D. & Torres M. S. (1986). College biology. Quezon City: National Book Store.
Chicago
Alvarez Alicia A, Eisma Maximo A Jr, Herico Wilhelmina T, Mendez Eriqueta A, Ozaeta Angeles F, Tito Ninnette D and Torres Manuel S. 1986. College biology. Quezon City: National Book Store.
Harvard
Alvarez A. A., Eisma M. A. J., Herico W. T., Mendez E. A., Ozaeta A. F., Tito N. D. and Torres M. S. (1986). College biology. Quezon City: National Book Store.
MLA
Alvarez Alicia A, Eisma Maximo A Jr, Herico Wilhelmina T, Mendez Eriqueta A, Ozaeta Angeles F, Tito Ninnette D and Torres Manuel S. College biology. Quezon City: National Book Store. 1986.