APA (7e ed.) Bronvermelding

Welch, P. S. (2009). Limnological methods. Narendra Pub..

Chicago (17e ed.) Bronvermelding

Welch, Paul S. Limnological Methods. Delhi: Narendra Pub., 2009.

MLA (9e ed.) Bronvermelding

Welch, Paul S. Limnological Methods. Narendra Pub., 2009.