APA (7th ed.) Citation

Schumann, C. H. (1940). Technical drafting: A text and reference book on graphics. Harper.

Chicago Style (17th ed.) Citation

Schumann, Charles Henry. Technical Drafting: A Text and Reference Book on Graphics. New York ; London: Harper, 1940.

MLA (9th ed.) Citation

Schumann, Charles Henry. Technical Drafting: A Text and Reference Book on Graphics. Harper, 1940.

Warning: These citations may not always be 100% accurate.