The aging of populations and its economic and social implications.

ग्रंथसूची विवरण
निगमित लेखक: United Nations. Dept. of Economic and Social Affairs
स्वरूप: पुस्तक
भाषा:English
प्रकाशित: New York s.n. 1956.
श्रृंखला:Population studies no. 26
विषय: