APA

Zelder R. E., Western Michigan University, . (1968). Key factors in economic growth: lectures given at Western Michigan University under the sponsorship of the Department of Economics, winter semester, 1967. Ann Arbor: Bureau of Business Research, University of Michigan.

Chicago

Zelder Raymond E, Western Michigan University, . 1968. Key factors in economic growth: lectures given at Western Michigan University under the sponsorship of the Department of Economics, winter semester, 1967. Ann Arbor: Bureau of Business Research, University of Michigan.

Harvard

Zelder R. E., Western Michigan University, . (1968). Key factors in economic growth: lectures given at Western Michigan University under the sponsorship of the Department of Economics, winter semester, 1967. Ann Arbor: Bureau of Business Research, University of Michigan.

MLA

Zelder Raymond E, Western Michigan University, . Key factors in economic growth: lectures given at Western Michigan University under the sponsorship of the Department of Economics, winter semester, 1967. Ann Arbor: Bureau of Business Research, University of Michigan. 1968.