TY  - BOOK
AU  - Hopkinson, Hazel
AU  - 
TI  - Technical communication
U1  - 501 
PY  - 1974///
CY  - Sydney
PB  - McGraw-Hill
KW  - Science
KW  - Chemistry
KW  - Pure sciences
KW  - Natural sciences
KW  - Scienctific research
KW  - Scientific research
KW  - Research
KW  - Research works
ER  -