TY  - BOOK
AU  - Swallow,Arthur
AU  - Bergin,David F.
TI  - Physics diagrams
U1  - 530 
PY  - 1947///?]
CY  - London
PB  - John Murray
KW  - Physics
KW  - Charts, diagrams, etc
KW  - Physical instruments
N1  - Title from cover; Includes index; Murray file copy no. 668
ER  -