1. Goosanders and red-breasted mergansers in the Moray Firth;Aspinall;Scott. Birds,1988
2. Preliminary observations of the bottlenose dolphin Tursiops truncatus in the Sado estuary, Portugal;dos Santos;Aquat. Mammal.,1987
3. An analysis of sightings of cetacea in British waters;Evans;Mammal Rev.,1976
4. Cetaceans in British waters;Evans;Mammal Rev.,1980
5. The Natural History of Whales and Dolphins;Evans,1987