TY  - BOOK
AU  - Bernal,J.D.
TI  - Science in history
SN  - 0262520214 (pbk)
U1  - 909 
PY  - 1971/// (1985 printing)
CY  - Cambridge
PB  - The M.I.T.Press
KW  - History
KW  - World History
N1  - Includes bibliographical references and index
ER  -