00404nam a22001577a 4500 1051 1051 200108b ||||| |||| 00| 0 eng d 541.2 S7411 349 Speakman, J. C. Modern atomic theory : An elementary introduction 4th London Arnold 1951 207p. 7.02 Atomic Theory BK 0 0 ddc 0 541_200000000000000_S7411 0 3385 CL CL 1952-11-10 Longmans 541.2 S7411 00816 2020-01-08 BK 0 0 ddc 0 541_200000000000000_S7411 0 3386 CL CL 1952-11-10 Longmans 541.2 S7411 00817 2020-01-08 BK