Long, M., & Roberson, B. S. (1987). World problems: A topic geography (3. ed., reprinted.). Hodder and Stoughton.
Chicago Style (17th ed.) CitationLong, Molly, and B. S. Roberson. World Problems: A Topic Geography. 3. ed., reprinted. London: Hodder and Stoughton, 1987.
MLA (9th ed.) CitationLong, Molly, and B. S. Roberson. World Problems: A Topic Geography. 3. ed., reprinted. Hodder and Stoughton, 1987.
Warning: These citations may not always be 100% accurate.