NCRA-SIRC Search for 'callnum:"52(058.7)/HEC"'

International directory of professional astronomical institutions :

Strasbourg, France : Centre de données de Strasbourg, Observatoire astronomique, 1986 . iv, 276 p., , Published: Observatoire astronomique, <1990-> | Latest issue consulted: 1990. 21 cm..

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International directory of astronomical associations and societies :

Strasbourg, France : Centre de données stellaires, Observatoire astronomique, 1988 . v, 516 p. ; , Latest issue consulted: 1988. 21 cm..

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