00281nam a2200109 a 450000500170000002000150001708200170003210000210004924500480007026000350011830000180015320251203091909.0  a0415031354  a189,bD, col  aCollinson, Diane  aFifty major philosophers: A reference guide  aLoNew DelhionbRoutledgec1987  a170p.c23 cm.