SMITH, D. M. (1975). Patterns in human geography: An introduction to numerical methods. David & charles.
Citazione stile Chigago Style (17a edizione)SMITH, David M. Patterns in Human Geography: An Introduction to Numerical Methods. Newton Abbot: David & charles, 1975.
Citatione MLA (9a ed.)SMITH, David M. Patterns in Human Geography: An Introduction to Numerical Methods. David & charles, 1975.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.