Railroad Archives Online
- FondD0036 - George Werkema Collection
- Sorozat001 - Burlington Northern Railroad Company
- Alsorozat014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 002 - Diesel Locomotives
- IratdarabWerkema001 - Burlington Northern 592 waits on a service track at St. Paul, Minnesota in 1971.
- IratdarabWerkema003 - Burlington Northern 187 waits on the diesel shop ready track in Auburn, Washington, in 1970.
- IratdarabWerkema006 - Burlington Northern 1906 at the Saint Cloud, Minnesota, freighthouse in 1978.
- IratdarabWerkema008 - Burlington Northern 5613 parked at Pasco, Washington, roundhouse in 1970.
- IratdarabWerkema009 - Burlington Northern 5617 at diesel shop in Denver, Colorado, in 1970.
- IratdarabWerkema010 - Burlington Northern 5617 at diesel shop in Denver, Colorado, in 1970.
- IratdarabWerkema011 - Burlington Northern 5619 parked at the diesel shop in Denver, Colorado, in 1970.
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