by R.W.G. Dennis

Royal Botanic Gardens, Kew 1995

所蔵館3館

by Elsie M. Wakefield and R.W.G. Dennis

Saiga c1981 2nd ed. / by R.W.G. Dennis Know the countryside series

所蔵館4館

[by] R. W. G. Dennis

H.M.S.O. 1970 Kew bulletin additional series 3

所蔵館2館

Ernst Gram and Anna Weber ; edited and adapted for English conditions by R.W.G. Dennis ; translated from the Danish by Evelyn Ramsden

Macdonald 1952

所蔵館2館