NOORDHUIS R (1996) Book reviews: Kilian, D. ... (et al.), Der Graureiher (Ardea cinera) in Baden Wurttemberg 1985-1991, 1993. LIMOSA 69 (1): 33-33.
KILIAN D., HOLZINGER J., MAHLER U & STEGMAYER R. 1993. Der Graureiher (Ardea cinerea) in Baden Wiirttemberg 1985-1991. Okologie der Vogel, Band 15, Sonderheft. 36 p. + 16 p. foto's. ISSN 0173.0711.
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