Authors: LONG DG RATCLIFFE DA

Citation: Dg. Long et Da. Ratcliffe, BRYOPHYTES OF HIRTA, ST-KILDA, Journal of Bryology, 19, 1996, pp. 89-111

Authors: CRICK HQP RATCLIFFE DA

Citation: Hqp. Crick et Da. Ratcliffe, THE PEREGRINE FALCO-PEREGRINUS BREEDING POPULATION OF THE UNITED-KINGDOM IN 1991, Bird study, 42, 1995, pp. 1-19

Authors: RATCLIFFE DA BIRKS HJB BIRKS HH

Citation: Da. Ratcliffe et al., THE ECOLOGY AND CONSERVATION OF THE KILLARNEY FERN TRICHOMANES-SPECIOSUM WILLD IN BRITAIN AND IRELAND, Biological Conservation, 66(3), 1993, pp. 231-247