Cirkel, F. (1909). Report on the chrome iron ore deposits in the eastern townships province of Quebec. Canada Department of Mines, Mines Branch.
Chicago-Zitierstil (17. Ausg.)Cirkel, Fritz. Report on the Chrome Iron Ore Deposits in the Eastern Townships Province of Quebec. Ottawa: Canada Department of Mines, Mines Branch, 1909.
MLA-Zitierstil (9. Ausg.)Cirkel, Fritz. Report on the Chrome Iron Ore Deposits in the Eastern Townships Province of Quebec. Canada Department of Mines, Mines Branch, 1909.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.