APA aipamena

Solano-Mayorga, M. A. (2012). USE OF OPEN SOURCE GEOGRAPHIC INFORMATION SYSTEMS IN COSTA RICA.

Chicago Style aipamena

Solano-Mayorga, Manuel Antonio. USE OF OPEN SOURCE GEOGRAPHIC INFORMATION SYSTEMS IN COSTA RICA. 2012.

MLA aipamena

Solano-Mayorga, Manuel Antonio. USE OF OPEN SOURCE GEOGRAPHIC INFORMATION SYSTEMS IN COSTA RICA. 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.