00569nam a2200169Ia 4500003000900000008004100009040001600050080001700066100001900083245012100102260004800223300001500271490004700286650002500333650001900358650002200377IN-BaIIA211028s9999 xx 000 0 eng d cIIA Library a537.531bPIR aPirenne, M. H. 4aThe diffraction of X-rays and electrons by free moleculescM. H. Pirenne  aCambridgebCambridge University Pressc1946 axii, 160p. aThe cambridge series of physical chemistry aElectron Diffraction aNASA Thesaurus aX-Ray Diffraction