APA (7th ed.) Citation

(1991). Advances in ordovician geology. Geological Survey of Canada.

Chicago Style (17th ed.) Citation

Advances in Ordovician Geology. Ottawa: Geological Survey of Canada, 1991.

MLA (9th ed.) Citation

Advances in Ordovician Geology. Geological Survey of Canada, 1991.

Warning: These citations may not always be 100% accurate.