TY  - BOOK
AU  - Armstrong,D.M.
TI  - What is a law of nature?
SN  - 0521253438 (hbk)
U1  - 113 
PY  - 1983///5
CY  - Cambridge
PB  - Cambridge University Press
KW  - Philosophy of nature
N1  - Bibliography: p. 174-176; Includes index
ER  -