APA

Martin D. L., Gehr R. A., . (1947). Introduction hardeming of steel. New York: steel.

Chicago

Martin David Lamar, Gehr R A, . 1947. Introduction hardeming of steel. New York: steel.

Harvard

Martin D. L., Gehr R. A., . (1947). Introduction hardeming of steel. New York: steel.

MLA

Martin David Lamar, Gehr R A, . Introduction hardeming of steel. New York: steel. 1947.