TY  - BOOK
AU  - Kahn,Charles H.
AU  - Verhaar,John W.M.
TI  - The verb "be" and its synonyms: philosophical and grammatical studies 
T2  - Foundations of language. Supplementary series
SN  - 9027702225
PY  - 1973///
CY  - Dordrecht, Holland, Boston
PB  - Reidel
KW  - Griego
ER  -