000 00399nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aCole, G.L., Gartner, W.C.
245 _aBenefit-cost analysis of selected Delaware state park development plans
260 _aNewark
260 _c1977
300 _a77 p.
440 _aNo. 420; Delaware Agricultural
901 _pS29485
942 _cB
_2udc
999 _c116668
_d116668