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Marketing and Market Research : an outline of modern principles and practice
Clark, F. T., (1948)
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Neuronale Netze zur Prognose von Finanzzeitreihen und Absatzzahlen
Menzel, Wolfram, (2000)
Grain marketing methods in the U.S.A. : the theory, assumptions, and approach
Schruben, Leonard W., (1973)
Trends affecting U.S. wheat policy
Schruben, Leonard W., (1980)
EVALUATION OF AGRICULTURAL PROGRAMS IN TERMS OF ECONOMIC GROWTH, FOREIGN TRADE, AND POLITICAL FEASIBILITY: WHEAT
Schruben, Leonard W.,