Bushnell, D. S., & Rappaport, D. (1971). Planned change in education: A systems approach. Harcourt, Brace, Jovanovich, Inc.
Cita Chicago (17th ed.)Bushnell, David S., i Donald Rappaport. Planned Change in Education: A Systems Approach. New York: Harcourt, Brace, Jovanovich, Inc, 1971.
Cita MLA (9th ed.)Bushnell, David S., i Donald Rappaport. Planned Change in Education: A Systems Approach. Harcourt, Brace, Jovanovich, Inc, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.