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Elements of statistics
Mode, Elmer B., (1961)
Basic statistical methods
Downie, N. M., (1965)
Modern elementary statistics
Freund, John E., (1973)
The Use of statistics : a handbook for co-operatives
Pickett, Liam E., (1975)
Organising development through participation : co-operative organisation and services for land settlement ; a study prepared for the International Labour Office
Pickett, Liam E., (1988)