TY - GEN A1 - Boyd, J. M. PB - Wiley-Blackwell M3 - Text VL - 138 CY - London PY - 1962 IS - 3 EP - 404 KW - Halichoerus grypus KW - Seals KW - Seasonal occurrence T1 - Seasonal occurrence and movements of seals in north-west Britain SP - 385 UR - http://www.rcin.org.pl/dlibra/publication/edition/37325 ER -