APA (7th ed.) Citation

Mill, H. R. The realm of nature: An outline of physiography / Hugh Robert Mill (1st edition.).

Chicago Style (17th ed.) Citation

Mill, Hugh Robert. The Realm of Nature: An Outline of Physiography / Hugh Robert Mill. 1st edition. London : John Murray, 1891 (reprinted 1908).

MLA (8th ed.) Citation

Mill, Hugh Robert. The Realm of Nature: An Outline of Physiography / Hugh Robert Mill. 1st edition.