APA (7th ed.) Citation

Wetzel, R. G., & Likens, G. E. (1991). Limnological analyses (2a. ed.). Springer Verlag.

Chicago Style (17th ed.) Citation

Wetzel, Robert G., and Gene E. Likens. Limnological Analyses. 2a. ed. Nueva York: Springer Verlag, 1991.

MLA (9th ed.) Citation

Wetzel, Robert G., and Gene E. Likens. Limnological Analyses. 2a. ed. Springer Verlag, 1991.