Thomas, Keith: Man and the natural world: changing attitudes in England, 1500-1800. London 1983. Internet: https://books.google.de/books?id=qACGVWiq8SIC&printsec=frontcover&dq=Man+and+the+Natural+World.+Changing+Attitudes+in+England+1500%E2%80%931800.&hl=en&sa=X&ved=0ahUKEwj-8_6L-9_RAhVDVRoKHaMwBy4Q6AEIJTAA#v=onepage&q=Man%20and%20the%20Natural%20World.%20Changing%20Attitudes%20in%20England%201500%E2%80%931800.&f=false. Zuletzt geprüft am: 26.1.2017.