Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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