Cita APA

Ehlers, V. M. (1965). Municipal and rural sanitation. (6¦ ed.). New York: McGraw-Hill Book Company.

Citación estilo Chicago

Ehlers, Victor M. Municipal and Rural Sanitation. 6¦ ed. New York: McGraw-Hill Book Company, 1965.

Cita MLA

Ehlers, Victor M. Municipal and Rural Sanitation. 6¦ ed. New York: McGraw-Hill Book Company, 1965.