Mackinder, I. H., & Evans, S. (1981). The predictive accuracy of British transport studies in urban areas. Transport and Road Research Laboratory.
Chicago Style (17. basım) AtıfMackinder, I. H., ve S. Evans. The Predictive Accuracy of British Transport Studies in Urban Areas. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1981.
MLA (9th ed.) AtıfMackinder, I. H., ve S. Evans. The Predictive Accuracy of British Transport Studies in Urban Areas. Transport and Road Research Laboratory, 1981.
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