TY  - BOOK
AU  - Engels,Friedrich
AU  - Dutt,C.P.
AU  - Haldane,J.B.S.
TI  - Dialectics of nature,
AV  - Q175 .E48
U1  - 501 ENG 
PY  - 1940///]
CY  - New York
PB  - International Publishers
KW  - Dialectic (Science)
KW  - Science
KW  - Philosophy
ER  -