Thompson, W. S. (1965). Population problems. McGraw-Hill.
Chicago Style (17th ed.) ZitazioaThompson, Warren Simpson. Population Problems. New York: McGraw-Hill, 1965.
MLA (9th ed.) ZitazioaThompson, Warren Simpson. Population Problems. McGraw-Hill, 1965.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.