Cita APA (7a ed.)
Robertson, W. C. (2007). Chemistry basics. National Science Teachers Association.
Cita Chicago Style (17a ed.)
Robertson, William C. Chemistry Basics. Arlington, Va.: National Science Teachers Association, 2007.
Cita MLA (9a ed.)
Robertson, William C. Chemistry Basics. National Science Teachers Association, 2007.
Precaución: Estas citas no son 100% exactas.