APA (7th ed.) Citation

Armstrong, H. A. (1990). Conodonts from the Upper Ordovician - Lower Silurian carbonate platform of North Greenland.

Chicago Style (17th ed.) Citation

Armstrong, Howard A. Conodonts from the Upper Ordovician - Lower Silurian Carbonate Platform of North Greenland. Copenhagen, 1990.

MLA (9th ed.) Citation

Armstrong, Howard A. Conodonts from the Upper Ordovician - Lower Silurian Carbonate Platform of North Greenland. 1990.

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