Campbell, J. (2001). Map use & analysis (4th ed.). McGraw-Hill.
Citación estilo ChicagoCampbell, John. Map Use & Analysis. 4th ed. Boston: McGraw-Hill, 2001.
Cita MLACampbell, John. Map Use & Analysis. 4th ed. McGraw-Hill, 2001.
Warning: These citations may not always be 100% accurate.