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By Shelemyahu Zacks. He received his Ph.D. at Columbia University, New York, in 1962. From 1963 till 2014 he had an academic career at several universities. He had thirty doctoral students. Author Shelemyahu Zacks.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.