APA (7th ed.) Citation

Hansen, T. (2009). Trilobites of the Middle Ordovician Elnes Formation of the Oslo region, Norway. Wiley-Blackwell.

Chicago Style (17th ed.) Citation

Hansen, Thomas. Trilobites of the Middle Ordovician Elnes Formation of the Oslo Region, Norway. Chichester, Sussex: Wiley-Blackwell, 2009.

MLA (8th ed.) Citation

Hansen, Thomas. Trilobites of the Middle Ordovician Elnes Formation of the Oslo Region, Norway. Wiley-Blackwell, 2009.

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