Unsere Vögel
By: [von] C. A. W. Guggisberg [und] Robert Hainard
Series: Hallwag-Taschenbücherei -- Bd. 1
Publisher: Hallwag
Published: 1900
Place of publication: Bern
Language: ger
Subjects: Birds; Identification; Bird watching
Other titles: Vögel der Schweiz
Notes: Bd. 2 by C. A. W. Guggisberg.