Abietic acidSolvent Extraction of Coals by Abietic Acid at Atmospheric PressureEdward C. Tarpley, Charles K. Rose, Francis R. Cattoir, George H. Martindill, Harold D. Hess, Harold L. Gibbs, Jack G. Croeni, John B. Gayle, M. D. Carver, Mary F. Koehler, Max Richard Geer, Michael George Zabetakis, Norman E. Hanna, Raynard V. Lundquist, Standley L. Ausmus, Thomas J. Blalock, Wesley A. Grosh, William A. Stickney, William Alan McKinney, William Harlan Ode, Haruo Katō, A. W. Deurbrouck, Annie G. Smelley, C. E. Armantrout, C. W. Sanders, Carl H. Schack, Carl Rampacek, D. H. Baker, Eben L. Singleton, Floyd William Wood, Francis Harold Gibson, G. H. Damon, H. C. Howard, Lloyd Carpenter, Milan J. Kovalik, Patricia M. Gussey, George Stanley Scott, Harry Fagan Yancey, Julius Bruce Clemmer, Robert A. Beall, Robert Wayne Van Dolah
