Cita APA

Bolstad, P. (2012). GIS fundamentals: A first text on geographic information systems (4. edition.). Acton, Mass: XanEdu.

Citación estilo Chicago

Bolstad, Paul. GIS Fundamentals: A First Text On Geographic Information Systems. 4. edition. Acton, Mass: XanEdu, 2012.

Cita MLA

Bolstad, Paul. GIS Fundamentals: A First Text On Geographic Information Systems. 4. edition. Acton, Mass: XanEdu, 2012.

Precaución: Estas citas no son 100% exactas.