Παραπομπή APA

Heffernan,Shelagh, & Sinclair,Peter. (1990). Modern internaitonal economics. Blackwell.

Παραπομπή Chicago Style

Heffernan,Shelagh, και Sinclair,Peter. Modern Internaitonal Economics. U K: Blackwell, 1990.

Παραπομπή MLA

Heffernan,Shelagh, και Sinclair,Peter. Modern Internaitonal Economics. Blackwell, 1990.