APA ציטוט

Donaldson, P. (1977). Economics of the real world. London: Penguin Books.

Trích dẫn kiểu Chicago

Donaldson, Peter. Economics of the Real World. London: Penguin Books, 1977.

ציטוט MLA

Donaldson, Peter. Economics of the Real World. London: Penguin Books, 1977.