Style de citation APA (7e éd.)

LEFFINGWELL, W. H. (1975). Textbook Of Office Management William H. Leffingwell Dan Edwin M. Robinson. McGraw-Hill.

Style de citation Chicago (17e éd.)

LEFFINGWELL, William H. Textbook Of Office Management William H. Leffingwell Dan Edwin M. Robinson. McGraw-Hill, 1975.

Style de citation MLA (8e éd.)

LEFFINGWELL, William H. Textbook Of Office Management William H. Leffingwell Dan Edwin M. Robinson. McGraw-Hill, 1975.