Property:Booktitleyear

This is a property of type Has type::String.

The allowed values for this property are:
 * Allows value::1960
 * Allows value::1961
 * Allows value::1962
 * Allows value::1963
 * Allows value::1964
 * Allows value::1965
 * Allows value::1966
 * Allows value::1967
 * Allows value::1968
 * Allows value::1969
 * Allows value::1970
 * Allows value::1971
 * Allows value::1972
 * Allows value::1973
 * Allows value::1974
 * Allows value::1975
 * Allows value::1976
 * Allows value::1977
 * Allows value::1978
 * Allows value::1979
 * Allows value::1980
 * Allows value::1981
 * Allows value::1982
 * Allows value::1983
 * Allows value::1984
 * Allows value::1985
 * Allows value::1986
 * Allows value::1987
 * Allows value::1988
 * Allows value::1989
 * Allows value::1990
 * Allows value::1991
 * Allows value::1992
 * Allows value::1993
 * Allows value::1994
 * Allows value::1995
 * Allows value::1996
 * Allows value::1997
 * Allows value::1998
 * Allows value::1999
 * Allows value::2000
 * Allows value::2001
 * Allows value::2002
 * Allows value::2003
 * Allows value::2004
 * Allows value::2005
 * Allows value::2006
 * Allows value::2007
 * Allows value::2008
 * Allows value::2009
 * Allows value::2010
 * Allows value::2011
 * Allows value::2012
 * Allows value::2013
 * Allows value::2014
 * Allows value::2015
 * Allows value::2016
 * Allows value::2017
 * Allows value::2018
 * Allows value::2019
 * Allows value::2020