Lena, H. F., Helmreich, W. B., & McCord, W. J. (1992). Contemporary issues in Society. McGraw-Hill,c.
Chicago (17e ed.) BronvermeldingLena, Hugh F., William B. Helmreich, en William J. McCord. Contemporary Issues in Society. New York: McGraw-Hill,c, 1992.
MLA (8e ed.) BronvermeldingLena, Hugh F., et al. Contemporary Issues in Society. McGraw-Hill,c, 1992.
Let op: Deze citaties zijn niet altijd 100% accuraat.