Cita APA (7th ed.)

(1992). 75 reading plus. McGraw-Hill.

Cita Chicago (17th ed.)

75 Reading Plus. New York: McGraw-Hill, 1992.

Cita MLA (9th ed.)

75 Reading Plus. McGraw-Hill, 1992.

Atenció: Aquestes cites poden no estar 100% correctes.