Citazione Stile APA (7a Edizione)

Exton, J. (1979). Pliensbachian and Toarcian microfauna of Zambujal, Portugal: Systematic paleontology. Carleton University, Dept. of Geology.

Citazione stile Chigago Style (17a edizione)

Exton, John. Pliensbachian and Toarcian Microfauna of Zambujal, Portugal: Systematic Paleontology. Ottawa: Carleton University, Dept. of Geology, 1979.

Citatione MLA (8a ed.)

Exton, John. Pliensbachian and Toarcian Microfauna of Zambujal, Portugal: Systematic Paleontology. Carleton University, Dept. of Geology, 1979.