Hoppe, G. (1952). Hummocky moraine regions: With special reference to the interior of Norrbotten.
Chicago Style (17th ed.) CitationHoppe, Gunnar. Hummocky Moraine Regions: With Special Reference to the Interior of Norrbotten. Stockholm, 1952.
MLA (9th ed.) CitationHoppe, Gunnar. Hummocky Moraine Regions: With Special Reference to the Interior of Norrbotten. 1952.
Warning: These citations may not always be 100% accurate.