APA (7th ed.) Citation
ebrary, Inc, Gertsen, N., & Sønderby, L. (2009). Water purification. Nova Science Publishers, Inc..
Chicago Style (17th ed.) Citation
ebrary, Inc, Nikolaj Gertsen, and Linus Sønderby. Water Purification. New York: Nova Science Publishers, Inc., 2009.
MLA (9th ed.) Citation
ebrary, Inc, et al. Water Purification. Nova Science Publishers, Inc., 2009.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.