Espenshade, G. H. (1963). Geology of some copper deposits in North Carolina, Virginia, and Alabama. United States Government Print. Off.
Chicago-Zitierstil (17. Ausg.)Espenshade, Gilbert H. Geology of Some Copper Deposits in North Carolina, Virginia, and Alabama. Washington: United States Government Print. Off, 1963.
MLA-Zitierstil (9. Ausg.)Espenshade, Gilbert H. Geology of Some Copper Deposits in North Carolina, Virginia, and Alabama. United States Government Print. Off, 1963.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.