Logging along the Denver & Rio Grande: narrow gauge logging railroads of southwestern Colorado and northern New Mexico
MLA
Chappell, Gordon S. Logging Along the Denver & Rio Grande: Narrow Gauge Logging Railroads of Southwestern Colorado and Northern New Mexico. Golden: Colorado Railroad Museum, 1971
APA, 7th edition
Chappell, G. S. (1971). Logging along the Denver & Rio Grande: narrow gauge logging railroads of southwestern Colorado and northern New Mexico. Golden: Colorado Railroad Museum
Chicago, 17th edition
Chappell, Gordon S. Logging along the Denver & Rio Grande: narrow gauge logging railroads of southwestern Colorado and northern New Mexico. Golden: Colorado Railroad Museum, 1971