Giachino, J. W., & Beukema, H. J. (1969). Drafting Technology. American Technical Society.
Cita Chicago (17th ed.)Giachino, J. W., i Henry J. Beukema. Drafting Technology. American Technical Society, 1969.
Cita MLA (9th ed.)Giachino, J. W., i Henry J. Beukema. Drafting Technology. American Technical Society, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.