APA

Mansfield E., Behravesh N., . (1997). Economics USA. New York: W. W. Norton and Company.

Chicago

Mansfield E, Behravesh N, . 1997. Economics USA. New York: W. W. Norton and Company.

Harvard

Mansfield E., Behravesh N., . (1997). Economics USA. New York: W. W. Norton and Company.

MLA

Mansfield E, Behravesh N, . Economics USA. New York: W. W. Norton and Company. 1997.