Cita APA (7th ed.)
Barnfield, G. R., Male, T., & Sterland, E. G. (1964). Technical drawing. The English Universities Press.
Cita Chicago (17th ed.)
Barnfield, G. R., T. Male, i E. G. Sterland. Technical Drawing. London: The English Universities Press, 1964.
Cita MLA (9th ed.)
Barnfield, G. R., et al. Technical Drawing. The English Universities Press, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.