@misc{Craggs_J._D._Observations_1960,
 author={Craggs, J. D. and Ellison, N. F.},
 volume={135},
 number={3},
 copyright={Rights Reserved - Restricted Access},
 address={Londyn},
 journal={Proceedings of the Zoological Society of London},
 howpublished={online},
 year={1960},
 publisher={Wiley-Blackwell},
 language={eng},
 title={Observations on the seals of the (Welsh) dee estuary},
 type={Text},
 keywords={Halichoerus grypus, Phoca vitulina, Seal},
}