Citazione Stile APA (7a Edizione)
Holden, J. (2012). An introduction to physical geography and the environment (3rd ed.). Pearson.
Citazione stile Chigago Style (17a edizione)
Holden, Joseph. An Introduction to Physical Geography and the Environment. 3rd ed. Harlow: Pearson, 2012.
Citatione MLA (9a ed.)
Holden, Joseph. An Introduction to Physical Geography and the Environment. 3rd ed. Pearson, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.