Dyfyniad APA

Shi, W., & Fisher, P. F. G. (2002). Spatial data quality. Taylor & Francis.

Dyfyniad Arddull Chicago

Shi, Wenzhong, and Peter F. Goodchild Fisher. Spatial Data Quality. London: Taylor & Francis, 2002.

Dyfyniad MLA

Shi, Wenzhong, and Peter F. Goodchild Fisher. Spatial Data Quality. Taylor & Francis, 2002.

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