00339nam a22001337a 450000500170000000800410001702000080005804100080006608200150007410000190008924500430010826000370015130000170018820260622110226.0260622b        |||||||| |||| 00| 0 eng d  a000  aeng  a509bBER/S  aBernal, J. D.   aScience in History c/ by J. D. Bernal  aAustralia bPenguin Books c1969  axxv, 1006p.