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by Hughes, Jonathan; Cain, Louis P.
by Barbour; Samuel
by Perkins, John
by Rutherford; Malcolm
by Popescu,Oreste
by Carmichael, Richard E.
by Cain, Louis P.; Fishback, Price V.; Rhode, Paul W.
by Carmichael, Richard E., Ph.d.
by Barbour, Samuel; Cicarelli, James; King, J. E.