APA (7th ed.) Citation

Hobart, D. E. (1941). Engineering drawing. D. C. Heath and company.

Chicago Style (17th ed.) Citation

Hobart, Dean Estes. Engineering Drawing. Boston, New York [etc.]: D. C. Heath and company, 1941.

MLA (9th ed.) Citation

Hobart, Dean Estes. Engineering Drawing. D. C. Heath and company, 1941.