APA

Levitan S. A., Mangum G. L. & Marshall F. R. (1976). Human resources and labor markets: labor and manpower in the American economy. New York: Harper & Row.

Chicago

Levitan Sar A, Mangum Garth L and Marshall F Ray. 1976. Human resources and labor markets: labor and manpower in the American economy. New York: Harper & Row.

Harvard

Levitan S. A., Mangum G. L. and Marshall F. R. (1976). Human resources and labor markets: labor and manpower in the American economy. New York: Harper & Row.

MLA

Levitan Sar A, Mangum Garth L and Marshall F Ray. Human resources and labor markets: labor and manpower in the American economy. New York: Harper & Row. 1976.