00522 2200169 4500001002100000008004100021035002000062245005700082100001800139260006900157300004100226084001400267082001000281650002100291990002000312990002000332INLIS000000000027056 Ind  a0010-1218008894 aTheorie van drie stelsels van socialcWESTSTRATE, C. aC. Weststrate aLeidenbH.E. Stenfert Kroeses Uitgevers Maatschappij, N.V.c1948 axv, 656 p.; 26 cmcxv, 656 p.; 26 cm a330.1WESt a330.1 aECONOMIC SYSTEMS a985/89-mfn28913 a985/89-mfn34243