Lysaght, A. M. (1959). Directory of natural history and other field study societies in Great Britain: Including societies for archaeology, astronomy, meteorology, geology and cognate subjects. British Association for the Advancement of Science.
Style de citation Chicago (17e éd.)Lysaght, Averil Margaret. Directory of Natural History and Other Field Study Societies in Great Britain: Including Societies for Archaeology, Astronomy, Meteorology, Geology and Cognate Subjects. London: British Association for the Advancement of Science, 1959.
Style de citation MLA (9e éd.)Lysaght, Averil Margaret. Directory of Natural History and Other Field Study Societies in Great Britain: Including Societies for Archaeology, Astronomy, Meteorology, Geology and Cognate Subjects. British Association for the Advancement of Science, 1959.