Richards, p. G. (1956). Delegation in local government: Country to district councils . Allen & unwin.
Cita Chicago (17th ed.)Richards, peter G. Delegation in Local Government: Country to District Councils . London: Allen & unwin, 1956.
Cita MLA (9th ed.)Richards, peter G. Delegation in Local Government: Country to District Councils . Allen & unwin, 1956.
Atenció: Aquestes cites poden no estar 100% correctes.