Citazione Stile APA (7a Edizione)

Christoopher, P. J. (2009). Greatest citie in the world you should visit. Indiana Publishing House.

Citazione stile Chigago Style (17a edizione)

Christoopher, Paul J. Greatest Citie in the World You Should Visit. New Delhi: Indiana Publishing House, 2009.

Citatione MLA (9a ed.)

Christoopher, Paul J. Greatest Citie in the World You Should Visit. Indiana Publishing House, 2009.