Summary of National Parks & Wildlife Service surveys for common (harbour) seals (Phoca vitulina) and grey seals (Halichoerus grypus), 1978 to 2003
Lyons, D.O. (2004). Summary of National Parks & Wildlife Service surveys for common (harbour) seals (Phoca vitulina) and grey seals (Halichoerus grypus), 1978 to 2003. Irish Wildlife Manuals, 13. National Parks & Wildlife Service, Department of Environment, Heritage and Local Governement: Dublin. 68 pp.
Part of: Irish Wildlife Manuals. National Parks and Wildlife Service: Dublin. ISSN 1393-6670, more
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