Lichfield, N. (1988). Economics in urban conservation. Cambridge Univ. Pr.
Cita Chicago (17th ed.)Lichfield, Nathaniel. Economics in Urban Conservation. Cambridge Univ. Pr, 1988.
Cita MLA (9th ed.)Lichfield, Nathaniel. Economics in Urban Conservation. Cambridge Univ. Pr, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.