QB858.3 .I58 1986
523.1/12
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International Astronomical Union. Symposium (121° : 1986 : Bëiìurakan, Armenian S.S.R.)
Observational evidence of activity in galaxies : proceedings of the 121st Symposium of the International Astronomical Union, held in Byurakan, Armenia, U.S.S.R., June 3-7, 1986 / edited by E. Ye. Khachikian, K.J. Fricke, and J. Melnick.
— Dordrecht : D. Reidel, c1987. xxii, 601 p. : il. ; 25 cm.
Incluye referencias bibliográficas e índices.
ISBN 9027724741 (pbk.)
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