G. Christopher Davies, The Swan and her crew, or the adventures of three young naturalists and sportsmen on the broads and rivers of Norkfolk, Londres, Frederick Warne, 1889, p. 168-169.
G. Christopher Davies, The Swan and her crew, or the adventures of three young naturalists and sportsmen on the broads and rivers of Norkfolk, Londres, Frederick Warne, 1889, p. 168-169.