APA aipamena

Wallis, P. M., Erlandsen, S. L., Isaac-Renton, J. L., Olson, M. E., Robertson, W. J., & van Keulen, H. (1996). Prevalence of Giardia cysts and Cryptosporidium oocysts and characterization of Giardia spp. isolated from drinking water in Canada.

Chicago Style aipamena

Wallis, P M., S L. Erlandsen, J L. Isaac-Renton, M E. Olson, W J. Robertson, and H. van Keulen. Prevalence of Giardia Cysts and Cryptosporidium Oocysts and Characterization of Giardia Spp. Isolated From Drinking Water in Canada. 1996.

MLA aipamena

Wallis, P M., et al. Prevalence of Giardia Cysts and Cryptosporidium Oocysts and Characterization of Giardia Spp. Isolated From Drinking Water in Canada. 1996.