Cita APA (7a ed.)
Ehlers, V. (1943). Municipal and rural sanitation. (3¦ ed.). McGraw-Hill Book Company.
Cita Chicago Style (17a ed.)
Ehlers, Victor. Municipal and Rural Sanitation. 3¦ ed. New York: McGraw-Hill Book Company, 1943.
Cita MLA (9a ed.)
Ehlers, Victor. Municipal and Rural Sanitation. 3¦ ed. McGraw-Hill Book Company, 1943.
Precaución: Estas citas no son 100% exactas.