Cita APA

Schuurman,, N. (2004). GIS: A short introduction. Blackwell.

Chicago Edition Citation

Schuurman,, Nadine. GIS: A Short Introduction. Oxford: Blackwell, 2004.

Cita MLA

Schuurman,, Nadine. GIS: A Short Introduction. Blackwell, 2004.

Atenció: Aquestes cites poden no estar 100% correctes.