APA引文

Garcia, M. L. R. (1999). Natural family planning method. Kabayan.

Chicago Style (17th ed.) Citation

Garcia, Ma. Leonila R. "Natural Family Planning Method." Kabayan 1999.

MLA引文

Garcia, Ma. Leonila R. "Natural Family Planning Method." Kabayan, 1999.

警告：這些引文格式不一定是100％准確.