Tschopp, L. L. (2016). Pennsylvania Railroad XL Flanger [technical drawing]: Elevations and details drawn from prototype measurements. [Pennsylvania]: The High Line.
Chicago Style CitationTschopp, Larry Leroy. Pennsylvania Railroad XL Flanger [technical Drawing]: Elevations and Details Drawn From Prototype Measurements. [Pennsylvania]: The High Line, 2016.
MLA CitationTschopp, Larry Leroy. Pennsylvania Railroad XL Flanger [technical Drawing]: Elevations and Details Drawn From Prototype Measurements. [Pennsylvania]: The High Line, 2016.