APA aipamena

Boyce, R. R. (1982). Geographic perspectives on global problems: An introduction to geography. John Wiley and Sons.

Chicago Style aipamena

Boyce, Ronald Reed. Geographic Perspectives on Global Problems: An Introduction to Geography. New York: John Wiley and Sons, 1982.

MLA aipamena

Boyce, Ronald Reed. Geographic Perspectives on Global Problems: An Introduction to Geography. John Wiley and Sons, 1982.