Cita APA

Heimler, C. H., & Neal, C. D. (1983). Principles of science: Book two (5th ed.). Merrill.

Citación estilo Chicago

Heimler, Charles H., and Charles D. Neal. Principles of Science: Book Two. 5th ed. Columbus, OH: Merrill, 1983.

Cita MLA

Heimler, Charles H., and Charles D. Neal. Principles of Science: Book Two. 5th ed. Merrill, 1983.