APA Citation

Long, M., & Roberson, B. S. (1981). World problems: A topic geography (3rd ed.). London: Hodder and Stoughton.

Chicago Style Citation

Long, Moly, and B. S. Roberson. World Problems: A Topic Geography. 3rd ed. London: Hodder and Stoughton, 1981.

MLA Citation

Long, Moly, and B. S. Roberson. World Problems: A Topic Geography. 3rd ed. London: Hodder and Stoughton, 1981.

Warning: These citations may not always be 100% accurate.