By Higgins, Philip J., 1926-. London, New York, Van Nostrand Reinhold 1971 , On spine: Categories and groupoids. | "These notes are based on lectures given at the University of Michigan in 1967." 0442034067
]]>By Higgins, Philip J., 1926-. London, New York, Van Nostrand Reinhold 1971 , On spine: Categories and groupoids. | "These notes are based on lectures given at the University of Michigan in 1967." 0442034067
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