Παραπομπή APA

Shepherd,William G. (1979). Economics of industrial organization. Prentice Hall.

Παραπομπή Chicago Style

Shepherd,William G. Economics of Industrial Organization. Englewood: Prentice Hall, 1979.

Παραπομπή MLA

Shepherd,William G. Economics of Industrial Organization. Prentice Hall, 1979.