00511nam a22001577a 4500 230425b |||||||| |||| 00| 0 eng d National Science Library National Science Library 52(047) K5 Reports on astronomy: Transactions of the international astronomical union vol. XIIA- reports London: Academic Press, 1965 vii, 809p. Science Astronomy Pecker, Jean-Claude (Ed.) udc REP 23052 23052 0 0 udc 0 52047_K5 0 33723 NSL NSL GF/Rk-5/C-24/R-6 1967-05-31 0 52(047) K5 20370 2023-04-25 00:00:00 1967-05-31 REP