Dyfyniad APA
Barnfield, G. R., Male, T., & Sterland, E. G. (1964). Technical drawing. The English Universities Press.
Dyfyniad Arddull Chicago
Barnfield, G. R., T. Male, and E. G. Sterland. Technical Drawing. London: The English Universities Press, 1964.
Dyfyniad MLA
Barnfield, G. R., et al. Technical Drawing. The English Universities Press, 1964.
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