TY  - BOOK
AU  - Brecher,Erwin
TI  - Challenging science puzzles / 
SN  - 817245451110
U1  - 500 
PY  - 0000///-
CY  - New Delhi
PB  - Goodwill Publishing House, 
KW  - Science
KW  - Puzzles.
N1  - Includes glossary and index; Heat, Light Sound -- Space -- Household physics -- General phenomena -- Tongue-in-cheeks physics -- Solutions
ER  -