000 00263nam a2200109Ic 4500
005 20250121051343.0
008 240520s9999 xx 000 0 und d
040 _cDLC
245 1 0 _aPopulation and other problems
264 1 _b[S.l. : s.n.]
_c1981
942 _cBK
_2lcc
999 _c18368
_d18368