APA-referens (7:e uppl.)

Welch, P. S. (1948). Limnological methods. McGraw-Hill.

Chicago-referens (17:e uppl.)

Welch, Paul Smith. Limnological Methods. New York: McGraw-Hill, 1948.

MLA-referens (9:e uppl.)

Welch, Paul Smith. Limnological Methods. McGraw-Hill, 1948.