Gaya APA
Voisinet, D, D. (1987).
Introduction to Computer-Aided Drafting (Ed. II).
Sumatera:
Pusat Sumber Daya Geologi.
Gaya MLA
Voisinet, Donald, D.
"Introduction to Computer-Aided Drafting".
Ed. II
Sumatera:
Pusat Sumber Daya Geologi,
1987.
Textbook.