Walker, J. R. Exploring drafting: Fundamentals of drafting technology.
Cita Chicago (17th ed.)Walker, John R. Exploring Drafting: Fundamentals of Drafting Technology.
Cita MLA (8th ed.)Walker, John R. Exploring Drafting: Fundamentals of Drafting Technology.
Atenció: Aquestes cites poden no estar 100% correctes.