TY  - BOOK
AU  - Littlefield T.A.
AU  - Thorley N.
TI  - Atomic and nuclear physics: an introduction in S.I. units 
SN  - 0442048246
AV  - QC776.L5 1963 
PY  - 1963///
CY  - New York
PB  - Van Nostrand Reinhold company limited
ER  -