LEADER 00000nam 2200217 a 4500 001 0247936 003 UkHlHU 007 t 008 001103 1 1980 000 eng 040 UkHlHU 050 4 HQ 1061 C5 100 0 Clark, Robert L.|q(Robert Louis),|d1949- 245 04 The economics of individual and population aging /|cby R.L. Clarke and J.J. Spengler. 260 Cambridge :|bCambridge University Press,|c1980. 300 211p. 650 0 Adulthood|xSociology. 650 0 Older people. 700 0 Spengler, Joseph John. 946 020 absent -- ISBN check required 946 650 |a & |x subfields only. In at least one case all subfields comprise single words only -- Check for Geac subject headings 946 650 has non-LCSH elements -- Check for Geac subject headings
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