TY  - BOOK
ED  - Reader's Digest Association
TI  - How is it done?
SN  - 0864381220
U1  - 032.02 23
PY  - 1990///
CY  - London : 
PB  - Reader's Digest Association
KW  - Science
KW  - Miscellanea
KW  - Technology
N1  - At head of title: Reader's Digest
UR  - https://archive.org/details/howisitdone0000unse
ER  -