APA (7th ed.) Citation

Belen, L. Q. (1990). The family planning guide (Rev. ed.). The Author.

Chicago Style (17th ed.) Citation

Belen, Leonardo Q. The Family Planning Guide. Rev. ed. Manila: The Author, 1990.

MLA (9th ed.) Citation

Belen, Leonardo Q. The Family Planning Guide. Rev. ed. The Author, 1990.