Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Spekke, A. (1957). The ancient amber routes and the geographical discovery of the Eastern Baltic. published by M. Goppers.

Chicago Citation Edition Citation

Spekke, Arnolds. The Ancient Amber Routes and the Geographical Discovery of the Eastern Baltic. Stockholm: published by M. Goppers, 1957.

MLA Citation Edition Citation

Spekke, Arnolds. The Ancient Amber Routes and the Geographical Discovery of the Eastern Baltic. published by M. Goppers, 1957.