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Elementary statistical analysis
Wilks, Samuel S., (1952)
Mathematics and statistics for economists
Tintner, Gerhard, (1970)
Statistical methods
Snedecor, George W., (1967)
Human judgement and social policy : irreducible uncertainty, inevitable error, unavoidable injustice
Hammond, Kenneth R., (1996)
Judgment and decision in public policy formation
Hammond, Kenneth R., (1978)
Onward
Hammond, Kenneth R., (1992)