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Festschrift Egon Lendl
Arnberger, Erik, (1967)
Contingency table analysis in geographic research : a bibliographic essay
Altman, Donald E., (1975)
Some methodological issues in current research in geography : their relevance for the concept of scientific history
Amoah, F. E. K., (1977)
O Strabōn kai ē oloklērosis tēs ellēnikēs geōgrafias kai geooikonomikes
Poylopoylos, Stylianos K., (1963)
Ē organōsis tēs perifereiakēs anaptyxeōs (Kritēria kathorismoy kai oriothetēseōs oikonomikōm perifereiōn) - Poulopoulos, S. C.: The organisation for regional development
Poylopoylos, Stylianos K., (1961)