APA استشهاد

Frickey, E. (1967). Economic fluctuations in the United States: Systematic analysis of longrun trends and business cycle. Russell & Russell.

استشهاد بنمط شيكاغو

Frickey, Edwin. Economic Fluctuations in the United States: Systematic Analysis of Longrun Trends and Business Cycle. New York: Russell & Russell, 1967.

MLA استشهاد

Frickey, Edwin. Economic Fluctuations in the United States: Systematic Analysis of Longrun Trends and Business Cycle. Russell & Russell, 1967.