APA (7th ed.) Citation

Giesecke, F. E., Mitchell, A., Spencer, H. C., Hill, I. L., & Loving, R. O. (1969). Engineering graphics. MacMillan.

Chicago Style (17th ed.) Citation

Giesecke, Frederick Ernest, Alva Mitchell, Henry Cecil Spencer, Ivan Leroy Hill, and Robert Olin Loving. Engineering Graphics. Nueva York: MacMillan, 1969.

MLA (9th ed.) Citation

Giesecke, Frederick Ernest, et al. Engineering Graphics. MacMillan, 1969.