APA
Bollinger E. T., . (1979). Rails that climb. Boulder, CO: Johnson Publishing Co.
Chicago
Bollinger Edward T, . 1979. Rails that climb. Boulder, CO: Johnson Publishing Co.
Harvard
Bollinger E. T., . (1979). Rails that climb. Boulder, CO: Johnson Publishing Co.
MLA
Bollinger Edward T, . Rails that climb. Boulder, CO: Johnson Publishing Co. 1979.