Παραπομπή APA

Harbury, C. (1971). Introduction to economic behaviour. Collins Sons & Co. Ltd.

Παραπομπή Chicago Style

Harbury, C.D. Introduction to Economic Behaviour. London: Collins Sons & Co. Ltd, 1971.

Παραπομπή MLA

Harbury, C.D. Introduction to Economic Behaviour. Collins Sons & Co. Ltd, 1971.