Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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

Atenció: Aquestes cites poden no estar 100% correctes.