Cita APA (7th ed.)

Hepler, D. E., & Wallach, P. R. (1977). Architecture: Drafting and design (3rd ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Hepler, Donald E., i Paul Ross Wallach. Architecture: Drafting and Design. 3rd ed. New York: McGraw-Hill, 1977.

Cita MLA (9th ed.)

Hepler, Donald E., i Paul Ross Wallach. Architecture: Drafting and Design. 3rd ed. McGraw-Hill, 1977.