APA

Nelson W. R., . (1970). American government and political change: a contemporary reader. New York: Oxford University Press.

Chicago

Nelson William Richard, . 1970. American government and political change: a contemporary reader. New York: Oxford University Press.

Harvard

Nelson W. R., . (1970). American government and political change: a contemporary reader. New York: Oxford University Press.

MLA

Nelson William Richard, . American government and political change: a contemporary reader. New York: Oxford University Press. 1970.