Cita APA (7th ed.)
Spence , W. P. (1980). Drafting: Technology and practice. Bennett publishing.
Cita Chicago (17th ed.)
Spence , William P. Drafting: Technology and Practice. Peoria: Bennett publishing, 1980.
Cita MLA (9th ed.)
Spence , William P. Drafting: Technology and Practice. Bennett publishing, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.