Newson, J. (1968). Four Years Old in an Urban Community. George Allen and Unwin.
Cita Chicago (17th ed.)Newson, John. Four Years Old in an Urban Community. London: George Allen and Unwin, 1968.
Cita MLA (9th ed.)Newson, John. Four Years Old in an Urban Community. George Allen and Unwin, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.