Dyfyniad APA

Ehlers, V. M., & Steel, E. W. (1950). Municipal and rural sanitation. MacGraw-Hill.

Dyfyniad Arddull Chicago

Ehlers, Victor Marcus, and Ernest William Steel. Municipal and Rural Sanitation. New York: MacGraw-Hill, 1950.

Dyfyniad MLA

Ehlers, Victor Marcus, and Ernest William Steel. Municipal and Rural Sanitation. MacGraw-Hill, 1950.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.