Heywood, P. (1974). Planning and human need. Praeger.
Cita Chicago (17th ed.)Heywood, Philip. Planning and Human Need. New York: Praeger, 1974.
Cita MLA (9th ed.)Heywood, Philip. Planning and Human Need. Praeger, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.