Cultures of the Post-Classic Stage are defined distinctly by possessing developed
metallurgy. Social organization is supposed to involve complex
urbanism and
militarism. Ideologically, Post-Classic cultures are described as showing a tendency towards the
secularization of society.[2]
^Willey, Gordon R. (1989). "Gordon Willey". In
Glyn Edmund Daniel;
Christopher Chippindale (eds.). The Pastmasters: Eleven Modern Pioneers of Archaeology: V. Gordon Childe, Stuart Piggott, Charles Phillips, Christopher Hawkes, Seton Lloyd, Robert J. Braidwood, Gordon R. Willey, C.J. Becker, Sigfried J. De Laet, J. Desmond Clark, D.J. Mulvaney. New York:
Thames & Hudson.
ISBN0-500-05051-1.
OCLC19750309.
^Gordon R. Willey and Philip Phillips (1957). Method and Theory in American Archaeology. University of Chicago Press.
ISBN978-0-226-89888-9.