Chorley, R. J., & Haggett, P. (1969). Integrated models in geography: Part IV of Models in geography. Methuen.
Citazione stile Chigago Style (17a edizione)Chorley, Richard J., e Peter Haggett. Integrated Models in Geography: Part IV of Models in Geography. London: Methuen, 1969.
Citatione MLA (9a ed.)Chorley, Richard J., e Peter Haggett. Integrated Models in Geography: Part IV of Models in Geography. Methuen, 1969.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.