APA (7th ed.) Citation

Brown, R. L. (1968). Ghost towns of the Colorado Rockies. Caxton Printers.

Chicago Style (17th ed.) Citation

Brown, Robert L. Ghost Towns of the Colorado Rockies. Caldwell, Idaho: Caxton Printers, 1968.

MLA (9th ed.) Citation

Brown, Robert L. Ghost Towns of the Colorado Rockies. Caxton Printers, 1968.