00517nam a2200169Ia 4500003000900000008004100009020001800050040001600068080001600084100002400100245008200124250001200206260003800218300001600256490006400272650001100336IN-BaIIA211028s9999 xx 000 0 eng d a981-02-2632-2 cIIA Library a523.64bKRI aKrishna Swamy, K. S 0aPhysics of cometscK. S. Krishna Swamy  a2nd ed. aSingaporebWorld Scientificc1997 axiii, 380p. aWorld scientific series in astronomy and astrophysics; vol. aComets