B 29.261/2
Encyclopaedia of aviculture. Volume 2 / edited by A. Rutgers and K.A. Norris ; contributors include J. Delacour, Joseph M. Forshaw, Kurt Kolar, K.A. Norris, W. Watmough. -- English language edition first published. -- London : Blandford Press, 1972. -- ISBN : 0-7137-0801-8 (vázáno).
Rutgers, Abram. Norris, K. A.. Delacour, Jean, 1890-1985. Forshaw, Joseph Michael. Kolar, Kurt, 1933-1999. Watmough, W
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