Cita APA (7th ed.)

Data Resources, inc, & Eckstein, O. (1976). Parameters and policies in the U.S. economy. American Elsevier Pub. Co..

Cita Chicago (17th ed.)

Data Resources, inc, i Otto Eckstein. Parameters and Policies in the U.S. Economy. New York: American Elsevier Pub. Co., 1976.

Cita MLA (9th ed.)

Data Resources, inc, i Otto Eckstein. Parameters and Policies in the U.S. Economy. American Elsevier Pub. Co., 1976.