FLOWERDEW, R., MARTIN, D., et al. (2005): Methods in Human Geography: A Guide for Students Doing a Research Project. Prentice Hall. 392 p.
GREGORY, D., et al. (2009): The Dictionary of Human Geography. John Wiley & Sons, Inc. 1072 p.
RODRIGUE, J. P. (2020): The Geography of Transport Systems. 5th ed., New York: Routledge. 468 p.
SIEGEL J.S., SWANSON, D.A. eds. (2008): The Methods and Material of Demography, Academic Press; 2 edition. 819 p.