APA引文

De Guzman, E. A. (1974). Population education: What, how and why. s.n.

Chicago Style (17th ed.) Citation

De Guzman, Eliseo A. Population Education: What, How and Why. [S.l: s.n, 1974.

MLA引文

De Guzman, Eliseo A. Population Education: What, How and Why. s.n, 1974.