Die Unzertrennlichen (Agaporniden)
By: von Heinz Schwichtenberg
Series: Neue Brehm-Bücherei -- 400; Neue Brehm-Bücherei -- Bd. 400
Publisher: Franckh
Published: 1968
Place of publication: Stuttgart
Language: ger
Number of pages: 79
Subjects: Lovebirds; Birds; Behavior
Notes: Imprint under label reads: Wittenberg : Ziemsen.

Bibliography: p. 78-79.