APA

Mansfield E., Behravesh N., . (1998). Economics USA. New York: W.W.Norton and Company.

Chicago

Mansfield E, Behravesh N, . 1998. Economics USA. New York: W.W.Norton and Company.

Harvard

Mansfield E., Behravesh N., . (1998). Economics USA. New York: W.W.Norton and Company.

MLA

Mansfield E, Behravesh N, . Economics USA. New York: W.W.Norton and Company. 1998.