APA (7th ed.) Citation

Johnston, R. J. (1976). Classification in geography. Geo Abstracts Ltd.

Chicago Style (17th ed.) Citation

Johnston, R. J. Classification in Geography. Norwich: Geo Abstracts Ltd, 1976.

MLA (9th ed.) Citation

Johnston, R. J. Classification in Geography. Geo Abstracts Ltd, 1976.

Warning: These citations may not always be 100% accurate.