Cita APA (7a ed.)

Krebs, R. E. (1998). The History and use of our earth's chemical elements: A reference guide. Greenwood Press.

Cita Chicago Style (17a ed.)

Krebs, Robert E. The History and Use of Our Earth's Chemical Elements: A Reference Guide. Westport, CT [etc.]: Greenwood Press, 1998.

Cita MLA (9a ed.)

Krebs, Robert E. The History and Use of Our Earth's Chemical Elements: A Reference Guide. Greenwood Press, 1998.