Gaya APA

Pettersson, J, T., Astrom, J. (2010). Part IV Urban Water Contamination: Microbial Contaminants Removal in a Stormwater Pond . Spanyol: Springer.

Gaya MLA

Pettersson, J.R., Thomas., Astrom, Johan. "Part IV Urban Water Contamination: Microbial Contaminants Removal in a Stormwater Pond". Spanyol: Springer, 2010. Text.