APA Style

Wagner, Frederick H.. (1918). Coal gas residuals . New York: McGraw-Hill.

Chicago Style

Wagner, Frederick H.. Coal gas residuals. New York: McGraw-Hill, 1918. Hard Copy.

MLA Style

Wagner, Frederick H.. Coal gas residuals. New York: McGraw-Hill, 1918. Hard Copy.

Turabian Style

Wagner, Frederick H.. Coal gas residuals. New York: McGraw-Hill, 1918. Hard Copy.