Cita APA

Bell, J. B., Macrae, W. R., & Elliott, G. E. (1981). R factors in coliform-fecal coliform sewage flora of the prairies and Northwest Territories of Canada.

Citación estilo Chicago

Bell, J B., W R. Macrae, y G E. Elliott. R Factors in Coliform-fecal Coliform Sewage Flora of the Prairies and Northwest Territories of Canada. 1981.

Cita MLA

Bell, J B., W R. Macrae, y G E. Elliott. R Factors in Coliform-fecal Coliform Sewage Flora of the Prairies and Northwest Territories of Canada. 1981.