APA引文

Hardwida Philip & Khan Bahadeus. (1994). Introduction to modern economics (4.). Longman group.

Chicago Edition Citation

Hardwida Philip and Khan Bahadeus. Introduction to Modern Economics. 4. England: Longman group, 1994.

MLA引文

Hardwida Philip and Khan Bahadeus. Introduction to Modern Economics. 4. Longman group, 1994.

警告：這些引文格式不一定是100％准確.