Cita APA (7a ed.)
ebrary, Inc, Gertsen, N., & Sønderby, L. (2009). Water purification. Nova Science Publishers, Inc..
Cita Chicago Style (17a ed.)
ebrary, Inc, Nikolaj Gertsen, y Linus Sønderby. Water Purification. New York: Nova Science Publishers, Inc., 2009.
Cita MLA (9a ed.)
ebrary, Inc, et al. Water Purification. Nova Science Publishers, Inc., 2009.
Precaución: Estas citas no son 100% exactas.