Cita APA (7th ed.)
Greenberg, A. E., Clesceri, L. S., & Eaton, A. D. (1992). Standard methods (18a ed.).
Cita Chicago (17th ed.)
Greenberg, Arnold E., Lenore S. Clesceri, i Andrew D. Eaton. Standard Methods. 18a ed. 1992.
Cita MLA (9th ed.)
Greenberg, Arnold E., et al. Standard Methods. 18a ed. 1992.
Atenció: Aquestes cites poden no estar 100% correctes.