Cita APA (7th ed.)
Plas, J. M. (1986). Systems psychology in the schools. Pergamon Press.
Cita Chicago (17th ed.)
Plas, Jeanne M. Systems Psychology in the Schools. New York: Pergamon Press, 1986.
Cita MLA (9th ed.)
Plas, Jeanne M. Systems Psychology in the Schools. Pergamon Press, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.