Παραπομπή APA

Grabowski, R. (1994). Learn autocad 12 in a day. BPB Publications.

Παραπομπή Chicago Style

Grabowski, Ralph. Learn Autocad 12 in a Day. New Delhi: BPB Publications, 1994.

Παραπομπή MLA

Grabowski, Ralph. Learn Autocad 12 in a Day. BPB Publications, 1994.