TY  - BOOK
AU  - Ross, Alf,
AU  - Loar, Brian
TI  - Directives and norms
SN  - 710036353
U1  - 149.94 
PY  - 1968///
CY  - London
PB  - Routledge & K. Paul
KW  - Semantics (Philosophy)
KW  - Logic
KW  - Law
KW  - Philosophy
N1  - Includes bibliographical references and index
ER  -