00450nam a22001817i 450000500170000000800410001702000150005804100080007310000160008124500330009726000340013030000110016465000170017565000170019265300200020965500150022983000240024420141212095140.0920318s1992 sp gr 000 0 spa c a0631127461 aspa1 aPRESSAT, R.10aTHE DICTIONARY OF DEMOGRAPHY aOXFORDbBASIL BLACKWELLc1988 a243 p.14aDemografía14aDiccionarios10aAcción social 4aDocumental 0aBLACKWELL REFERENCE