Cita APA (7th ed.)
Summers, J. L., & Campbell, E. J. (2007). Food labeling compliance review (4th ed.). Blackwell Pub..
Cita Chicago (17th ed.)
Summers, James L., i Elizabeth J. Campbell. Food Labeling Compliance Review. 4th ed. Ames, Iowa: Blackwell Pub., 2007.
Cita MLA (9th ed.)
Summers, James L., i Elizabeth J. Campbell. Food Labeling Compliance Review. 4th ed. Blackwell Pub., 2007.
Atenció: Aquestes cites poden no estar 100% correctes.