TY  - ADVS
TI  - How to weigh to the nearest 0.1 mg on a semi - micro analytical balance
PY  - 1975///
CY  - America, Fairfield
PB  - American Institute of Biological Sciences [production company], Communication Skills Corporation [distributor]
KW  - Chemistry, Analytical
KW  - Weight and measures
KW  - Measurement
ER  -