Cita APA (7th ed.)

Giesecke, F. E. (1981). Technical drawing problems (6a. ed.). McMillan.

Cita Chicago (17th ed.)

Giesecke, Frederick Ernest. Technical Drawing Problems. 6a. ed. Nueva York: McMillan, 1981.

Cita MLA (9th ed.)

Giesecke, Frederick Ernest. Technical Drawing Problems. 6a. ed. McMillan, 1981.