Johnson, R. P. (1944). The steam locomotive: Its theory, operation and economics including comparisons with Diesel-electric locomotives (2. ed.). Simmons-Boardman.
Chicago-Zitierstil (17. Ausg.)Johnson, Ralph P. The Steam Locomotive: Its Theory, Operation and Economics Including Comparisons with Diesel-electric Locomotives. 2. ed. New York, NY: Simmons-Boardman, 1944.
MLA-Zitierstil (9. Ausg.)Johnson, Ralph P. The Steam Locomotive: Its Theory, Operation and Economics Including Comparisons with Diesel-electric Locomotives. 2. ed. Simmons-Boardman, 1944.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.