01037nam a2200301 i 450099100122792970753620020507113132.0970308s1970 us ||| | eng b1019132x-39ule_instLE00644257ExLDip.to Fisicaita1:5353(022)53(091)53.0.4Q158.5Open University34998Science :its origins, scales and limitations. Observation and measurements /Open UniversityBletchley, Bucks :Open University Press,1970lxiv, 72 p. :ill. ;30 cm.Open university. Science Foundation Course ;Units 1-2Science.b1019132x17-02-1727-06-02991001227929707536LE006 53(022+076) OPE12006000002790le006-E0.00-l- 00000.i1023597827-06-02Science191604UNISALENTOle00601-01-97ma -engus 01