APA (7e ed.) Bronvermelding

Hein, M. (1977). Foundations of college chemistry (4th ed.). Brooks/Cole.

Chicago (17e ed.) Bronvermelding

Hein, Morris. Foundations of College Chemistry. 4th ed. Monterey: Brooks/Cole, 1977.

MLA (9e ed.) Bronvermelding

Hein, Morris. Foundations of College Chemistry. 4th ed. Brooks/Cole, 1977.