Gaya APA

W.Stockel, M., Duffy, J, E. (1990). Instructor's guide and answer key for use with auto mechanics fundamentals . Illinois: Goodheart Willcox co.

Gaya MLA

W.Stockel, Martin., Duffy, James, E. "Instructor's guide and answer key for use with auto mechanics fundamentals". Illinois: Goodheart Willcox co, 1990. Text.