Cita APA (7th ed.)
Hillis, D. (1974). Is there Really only one way? Vision house.
Cita Chicago (17th ed.)
Hillis, Dick. Is There Really Only One Way? Santa Ana ,Califonia: Vision house, 1974.
Cita MLA (9th ed.)
Hillis, Dick. Is There Really Only One Way? Vision house, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.