WRIGHTSTONE, J. WAYNE.
End-of-course test in The steam locomotive. Course no.J421. Prepared by J. Wayne Wrightstone & John R. Clark.
WRIGHTSTONE, J. WAYNE. End-of-course test in The steam locomotive. Course no.J421. Prepared by J. Wayne Wrightstone & John R. Clark. © 15Dec45; AA13480. Educational Testing Service (PWH); 2Jan73; R542200.
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