APA (7th ed.) Citation

Ecker, W. E. (1981). Propulsion shafting. University Microfilms.

Chicago Style (17th ed.) Citation

Ecker, William E. Propulsion Shafting. Ann Arbor: University Microfilms, 1981.

MLA (9th ed.) Citation

Ecker, William E. Propulsion Shafting. University Microfilms, 1981.