Searched Miami's catalog and OhioLink and still can't find the book you want?
Request it through interlibrary loan.
Interlibrary loan will find a library that owns the book, and will request it on your behalf.
To request a book through interlibrary loan, fill out the online form: ill.lib.miamioh.edu/illiad/
Library of Congress call numbers group books by topic. Below are some call number ranges covering philosophy.
Ancient Philosophy
B108-708
Medieval Philosophy
B720-765
Renaissance Philosophy
B770-785
Modern Philosophy
B790-5802
Logic
BC1-199
Metaphysics
BD95-131
Epistemology
BD143-237