Παραπομπή APA

Hardwick,Philip, & Khan,Bahadur. (1982). An introduction to modern economics (4.). ELBS with Longman.

Παραπομπή Chicago Style

Hardwick,Philip, και Khan,Bahadur. An Introduction to Modern Economics. 4. England: ELBS with Longman, 1982.

Παραπομπή MLA

Hardwick,Philip, και Khan,Bahadur. An Introduction to Modern Economics. 4. ELBS with Longman, 1982.