APA (7th ed.) Citation

Warburg, E. (1939). The Swedish Ordovician and lower Silurian Lichidae. Almqvist & Wiksell.

Chicago Style (17th ed.) Citation

Warburg, Elsa. The Swedish Ordovician and Lower Silurian Lichidae. Stockholm: Almqvist & Wiksell, 1939.

MLA (9th ed.) Citation

Warburg, Elsa. The Swedish Ordovician and Lower Silurian Lichidae. Almqvist & Wiksell, 1939.

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