Cita APA (7th ed.)

Cruz, A. G., Dayrit, N. M., & Yap, G. R. (1974). Content analysis of Biology for Philippine high schools: The relationships of living things, textbook and laboratory, manual. s.n.].

Cita Chicago (17th ed.)

Cruz, Azucena G., Nenita M. Dayrit, i Guadalupe R. Yap. Content Analysis of Biology for Philippine High Schools: The Relationships of Living Things, Textbook and Laboratory, Manual. [S.l: s.n.], 1974.

Cita MLA (9th ed.)

Cruz, Azucena G., et al. Content Analysis of Biology for Philippine High Schools: The Relationships of Living Things, Textbook and Laboratory, Manual. s.n.], 1974.