Gaya APA

Omura, G. et al (2006). Mastering Autocad 2007 and Autocad LT 2007/2006 . Canada: Wiley-VCH.

Gaya MLA

Omura, George. et al. "Mastering Autocad 2007 and Autocad LT 2007/2006". Canada: Wiley-VCH, 2006. Text.