TY  - BOOK
AU  - DeGrood,David H.
TI  - Philosophies of essence: an examination of the category of essence 
SN  - 9001201601 (pbk) :
U1  - 111.1 
PY  - 1970///
CY  - Netherlands
PB  - Wolters-Noordhoff Pub.
KW  - Essence (Philosophy)
N1  - Includes bibliographical references and index
ER  -