APA aipamena

Contreras, L. E., & Valdez, B. J. (1980). Laboratory manual in general chemistry (Rev. ed.). Rex Book Store.

Chicago Style aipamena

Contreras, Lourdes E., and Bienvenido J. Valdez. Laboratory Manual in General Chemistry. Rev. ed. Manila: Rex Book Store, 1980.

MLA aipamena

Contreras, Lourdes E., and Bienvenido J. Valdez. Laboratory Manual in General Chemistry. Rev. ed. Rex Book Store, 1980.