APA (7th ed.) Zitazioa

Hoelscher, R. P., & Springer, C. H. (1963). Engineering drawing and geometry (2a. ed.). John Wiley.

Chicago Style (17th ed.) Zitazioa

Hoelscher, Randolph Philip, eta Clifford Harry Springer. Engineering Drawing and Geometry. 2a. ed. Nueva York: John Wiley, 1963.

MLA (9th ed.) Zitazioa

Hoelscher, Randolph Philip, eta Clifford Harry Springer. Engineering Drawing and Geometry. 2a. ed. John Wiley, 1963.