Publication Type: | Conference Paper |
Year of Publication: | 1955 |
Authors: | G. Timmermann |
Conference Name: | Eleventh International Congress of Ornithology |
Date Published: | 1955 |
Publication Type: | Conference Paper |
Year of Publication: | 1955 |
Authors: | G. Timmermann |
Conference Name: | Eleventh International Congress of Ornithology |
Date Published: | 1955 |