Hamm, BerndIndikatoren der Stadtentwicktung'Trier, Universitat Trier, 1979
2.
Hannan, Michael T. & Freeman John'The Population Ecology of Organizations', American Journal of Sociology, Vol. 82 (5), (1977), pp. 929-964.
3.
Hawley, Amos.Human Ecology. Ronald Press, New York1950.
4.
Hunter, AlbertSymbolic Commumuties. The University of Chicago Press, Chicago1974.
5.
Lebas, Elizabeth.Urban and Regional Sociology in Advanced Industrial Societies: A Decade of Marxist and Critical Perspectives', Current Sociology, Vol. 30 (1982), No. 1
6.
Luce. R Duncan & Raiffa, HowardGames and Decisions, Wiley , New York1957
7.
Sly, David F. & Tayman Jeffrey , Metropolitan Morphology and Population Mobility The Theory of Ecological Expansion Reexamined'. American Journal of Sociology, Vol 86 (1) (1980), pp.119-138.
8.
Theodorson. George A. (editor). Studies in Human Ecology, Harper & Row, New York1961.