APA (7th ed.) Citation

Erlström, M., Guy-Ohlson, D., & Ulf Sivhed. (1991). Upper Jurassic - Lower Cretaceous petrography and stratigraphy at Eriksdal, Scania, Southern Sweden.

Chicago Style (17th ed.) Citation

Erlström, Mikael, Dorothy Guy-Ohlson, and Ulf Sivhed. Upper Jurassic - Lower Cretaceous Petrography and Stratigraphy at Eriksdal, Scania, Southern Sweden. Uppsala, 1991.

MLA (9th ed.) Citation

Erlström, Mikael, et al. Upper Jurassic - Lower Cretaceous Petrography and Stratigraphy at Eriksdal, Scania, Southern Sweden. 1991.