Dyfyniad APA

CHANGE KANG -TSUNG. (2016). INTRODUCTION TO GEOGRAPHIC INFORMATION SYSTEMS. MC GRAW HILL.

Dyfyniad Arddull Chicago

CHANGE KANG -TSUNG. INTRODUCTION TO GEOGRAPHIC INFORMATION SYSTEMS. NEW DELHI: MC GRAW HILL, 2016.

Dyfyniad MLA

CHANGE KANG -TSUNG. INTRODUCTION TO GEOGRAPHIC INFORMATION SYSTEMS. MC GRAW HILL, 2016.

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