Gaya APA

Leach, J, A., Lower, K. (2003). Autocad 2002 companion : essentials of autocad plus solid modeling . New York: McGraw-Hill.

Gaya MLA

Leach, James, A.., Lower, Kelly. "Autocad 2002 companion : essentials of autocad plus solid modeling". New York: McGraw-Hill, 2003. Text.