APA (7e ed.) Bronvermelding
Spence, W. P. (1991). Drafting: Technology and practice (3rd ed.). Glencoe/ Mcmillan/McGraw-Hill.
Chicago (17e ed.) Bronvermelding
Spence, William P. Drafting: Technology and Practice. 3rd ed. California: Glencoe/ Mcmillan/McGraw-Hill, 1991.
MLA (9e ed.) Bronvermelding
Spence, William P. Drafting: Technology and Practice. 3rd ed. Glencoe/ Mcmillan/McGraw-Hill, 1991.
Let op: Deze citaties zijn niet altijd 100% accuraat.