Παραπομπή APA

Tullberg,Rita Mc Williams. (1990). Alfred Marshall in retrospect. Edward Elgar Publishing Ltd.

Παραπομπή Chicago Style

Tullberg,Rita Mc Williams. Alfred Marshall in Retrospect. England: Edward Elgar Publishing Ltd, 1990.

Παραπομπή MLA

Tullberg,Rita Mc Williams. Alfred Marshall in Retrospect. Edward Elgar Publishing Ltd, 1990.