Frey, D. (1998). Autocad 14: : no experience required tm. BPB.
Chicago Style (17th ed.) ZitazioaFrey, David. Autocad 14: : No Experience Required Tm. New Delhi: BPB, 1998.
MLA (9th ed.) ZitazioaFrey, David. Autocad 14: : No Experience Required Tm. BPB, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.