Gaya APA

Marienhoff, R, J, S, ;, I. (1985). The American economy: analysis issues principles (ed. 2). Boston: Houghton Mifflin Company Boston.

Gaya MLA

Marienhoff, Roy, J., Sampson, ;, Ira. "The American economy: analysis issues principles". ed. 2 Boston: Houghton Mifflin Company Boston, 1985. Text.