Boyce, R. R. (1982). Geographic perspectives on global problems: An introduction to geography. John Wiley and Sons.
Style de citation Chicago (17e éd.)Boyce, Ronald Reed. Geographic Perspectives on Global Problems: An Introduction to Geography. John Wiley and Sons, 1982.
Style de citation MLA (9e éd.)Boyce, Ronald Reed. Geographic Perspectives on Global Problems: An Introduction to Geography. John Wiley and Sons, 1982.
Attention : ces citations peuvent ne pas être correctes à 100%.