APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Schumann, C. H. Technical Drafting: A Text and Reference Book on Graphics. New York, London: Harper & brothers, 1940.

MLA (9th ed.) Citation

Schumann, C. H. Technical Drafting: A Text and Reference Book on Graphics. Harper & brothers, 1940.