APA (7th ed.) Citation

De Guzman, E. A., & Zablan, Z. C. (1977). Fertility and contraception in the year 2000. s.n.].

Chicago Style (17th ed.) Citation

De Guzman, Eliseo A., and Zelda C. Zablan. Fertility and Contraception in the Year 2000. [S.l: s.n.], 1977.

MLA (9th ed.) Citation

De Guzman, Eliseo A., and Zelda C. Zablan. Fertility and Contraception in the Year 2000. s.n.], 1977.

Warning: These citations may not always be 100% accurate.