APA

Ehlers Victor M, Steel Ernest W & McGraw-Hill Publishing Company. (1943). Municipal and rural sanitation. New York: McGraw-Hill Book Company.

Chicago

Ehlers Victor M, Steel Ernest W and McGraw-Hill Publishing Company. 1943. Municipal and rural sanitation. New York: McGraw-Hill Book Company.

Harvard

Ehlers Victor M, Steel Ernest W and McGraw-Hill Publishing Company. (1943). Municipal and rural sanitation. New York: McGraw-Hill Book Company.

MLA

Ehlers Victor M, Steel Ernest W and McGraw-Hill Publishing Company. Municipal and rural sanitation. New York: McGraw-Hill Book Company. 1943.