APA (7e ed.) Bronvermelding

Hepler, D. E., & Wallach, P. R. (1971). Architecture: Drafting and design (2nd ed.). McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Hepler, Donald E., en Paul Ross Wallach. Architecture: Drafting and Design. 2nd ed. New York: McGraw-Hill, 1971.

MLA (9e ed.) Bronvermelding

Hepler, Donald E., en Paul Ross Wallach. Architecture: Drafting and Design. 2nd ed. McGraw-Hill, 1971.