Johnson, J. P. (1979). The politics of soft coal: The bituminous industry from World War I through the New Deal. Univ. of Illinois Press.
Chicago-Zitierstil (17. Ausg.)Johnson, James P. The Politics of Soft Coal: The Bituminous Industry from World War I Through the New Deal. Urbana [u.a.]: Univ. of Illinois Press, 1979.
MLA-Zitierstil (9. Ausg.)Johnson, James P. The Politics of Soft Coal: The Bituminous Industry from World War I Through the New Deal. Univ. of Illinois Press, 1979.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.