WETZEL, R. G. (1991). Limnological Analysis. Springer-Verlag.
Lua i Stíl Chicago (17ú heag.)WETZEL, Robert G. Limnological Analysis. Springer-Verlag, 1991.
Lua MLA (8ú heag.)WETZEL, Robert G. Limnological Analysis. Springer-Verlag, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.