Cita APA (7th ed.)
Bell, M. J. (2009). New york HSP science. Harcourt School.
Cita Chicago (17th ed.)
Bell, Michael J. New York HSP Science. New York: Harcourt School, 2009.
Cita MLA (9th ed.)
Bell, Michael J. New York HSP Science. Harcourt School, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.