00523nam a2200157Ia 4500003000900000008004100009040001600050080001500066100002500081245007400106260004200180300001400222490006400236650004100300650002400341IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a524.5bWIC  aWickramasinghe, N. C 0aInterstellar mattercN. C. Wickramasinghe, F. D. Kahn and P. G. Mezga  aSwitzerlandbGeneva Observatoryc1972  axi, 437p.  aSwiss society of astronomy and astrophysics second advanced  aAstronomy and astrophysics thesaurus  aInterstellar matter