00273nam a2200109 a 450000500170000008200150001710000240003224500370005626000320009330000230012563000150014820251202164236.0  a107.6bSTU  aSamuel Enoch Stumpf  aPhilosophybhistory and problems  aNew YorkbMcGraw Hillc1977  a333 p.b24 cm.cHB  aPhilosophy