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Price consistency in development planning
Cornelisse, Petrus Augustus, (1973)
Preistheorie
Krelle, Wilhelm, (1976)
The nature of price theory
Liebhafsky, Herbert H., (1968)
Food Prices in Relation to Income Levels in New York City
Alcaly, Roger E., (1970)
Food prices in relation to income levels in New York City
Alcaly, Roger E., (1971)
Aggregation and gravity models: some empirical evidence
Alcaly, Roger E., (1967)