Dyfyniad APA

Fraser, D. R. (1980). computer in contemporary cartography. Wiley Eastern.

Dyfyniad Arddull Chicago

Fraser, D R. Computer in Contemporary Cartography. Chichester: Wiley Eastern, 1980.

Dyfyniad MLA

Fraser, D R. Computer in Contemporary Cartography. Wiley Eastern, 1980.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.