TY  - BOOK
AU  - Sammalisto,Lasse
TI  - Interracial Hybridization as an Adaptation Mechanism in the Fennoscandian Yellow Wagtail Motachilla Flava L. Population
T2  - Annales Academiae Scientiarum Fennicae. Serie A. IV. Biológica ; 
PY  - 1958///
CY  - Helsinki : 
PB  - Suomalainen Tiedeakatemia, 
ER  -