Eskola, P. (1932). Conditions during the earliest geological times as indicated by the Archaean rocks. Suomalainen Tiedeakatemia.
Chicago-Zitierstil (17. Ausg.)Eskola, Pentti. Conditions During the Earliest Geological Times as Indicated by the Archaean Rocks. Helsinki: Suomalainen Tiedeakatemia, 1932.
MLA-Zitierstil (9. Ausg.)Eskola, Pentti. Conditions During the Earliest Geological Times as Indicated by the Archaean Rocks. Suomalainen Tiedeakatemia, 1932.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.