Cita APA (7th ed.)

Gymer, R. G. (1973). Chemistry in the natural world. Healt.

Cita Chicago (17th ed.)

Gymer, Roger G. Chemistry in the Natural World. Lexington, Mass.: Healt, 1973.

Cita MLA (9th ed.)

Gymer, Roger G. Chemistry in the Natural World. Healt, 1973.