Hein, M. (1993). College chemistry: An introduction to general, organic, and biochemistry (5th ed.). Brooks/Cole.
Chicago-viite (17. p.)Hein, Morris. College Chemistry: An Introduction to General, Organic, and Biochemistry. 5th ed. Pacific Grove, Calif: Brooks/Cole, 1993.
MLA-viite (9. p.)Hein, Morris. College Chemistry: An Introduction to General, Organic, and Biochemistry. 5th ed. Brooks/Cole, 1993.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.