Gaya APA

Ebbing, D, D., Wringhton, M, S. (1987). General chemistry (2nd ed). Boston: Houghton Mifflin.

Gaya MLA

Ebbing, Darrell, D.., Wringhton, Mark, S.. "General chemistry". 2nd ed Boston: Houghton Mifflin, 1987. Text.