APA-Zitierstil (7. Ausg.)

Ladd, G. W. (1987). Imagination in research: An economist's view (1. ed.). Iowa State.

Chicago-Zitierstil (17. Ausg.)

Ladd, Georg W. Imagination in Research: An Economist's View. 1. ed. Ames: Iowa State, 1987.

MLA-Zitierstil (9. Ausg.)

Ladd, Georg W. Imagination in Research: An Economist's View. 1. ed. Iowa State, 1987.