Gaya APA

Zumdahl, S, S., Hummel, T, J. (1998). Partial Solutions Guide : Chemical Principles . USA: Houghton Mifflin Company.

Gaya MLA

Zumdahl, Steven, S.., Hummel, Thomas, J.. "Partial Solutions Guide : Chemical Principles". USA: Houghton Mifflin Company, 1998. Text.