Frietsch, R. (1974). The occurrence and composition of apatite with special reference to iron ores and rocks in Northern Sweden.
Chicago-Zitierstil (17. Ausg.)Frietsch, Rudyard. The Occurrence and Composition of Apatite with Special Reference to Iron Ores and Rocks in Northern Sweden. Stockholm, 1974.
MLA-Zitierstil (9. Ausg.)Frietsch, Rudyard. The Occurrence and Composition of Apatite with Special Reference to Iron Ores and Rocks in Northern Sweden. 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.