Diamant, Rudolph Maximilian Eugen.
Understanding S.I. metrication / by R. M. E. Diamant; illustrations by P. Godfrey. - London : Angus & Robertson, 1970. - 112 p. : ill.
0207952299
Metric system.
Understanding S.I. metrication / by R. M. E. Diamant; illustrations by P. Godfrey. - London : Angus & Robertson, 1970. - 112 p. : ill.
0207952299
Metric system.