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

APA Citation Edition Citation

Gjessing, G. (1952). Petroglyphs and pictographs in British Columbia.- Chicago, IL.

Chicago Citation Edition Citation

Gjessing, Gutorm. Petroglyphs and Pictographs in British Columbia.- Chicago, IL. 1952.

MLA Citation Edition Citation

Gjessing, Gutorm. Petroglyphs and Pictographs in British Columbia.- Chicago, IL. 1952.