http://pec.lib.wvu.edu/record/P154851941Shuttle-car haulage in West Virginia.<p> Serial issue. Issued as: American Institute of Mining and Metallurgical Engineers. <em>Technical publication</em>, no. 1331.</p>McElroy, D. L. Schroder, John L.Shuttle cars (Mine haulage)Coal mines and mining--West Virginia.14256