TY  - BOOK
AU  - Mason,Stephen Finney,1923-
TI  - Main currents of scientific thought: a history of the sciences 
PY  - 1956///
CY  - New York
PB  - Abelard-Schuman
KW  - Science
KW  - History
N1  - London ed. (Routledge & Paul) has title: A history of the sciences
ER  -