Wesson, R. (2017). Darwin´s first theory: Exploring Darwin's quest to find a theory of the earth. Pegasus Books.
Citazione stile Chigago Style (17a edizione)Wesson, Rob. Darwin´s First Theory: Exploring Darwin's Quest to Find a Theory of the Earth. New York, NY., USA: Pegasus Books, 2017.
Citatione MLA (9a ed.)Wesson, Rob. Darwin´s First Theory: Exploring Darwin's Quest to Find a Theory of the Earth. Pegasus Books, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.