TY  - GEN
AU  - Garvin , J.W. 
AU  - Boyd , J.D.  
TI  - Skils in advanced biology Vol; 2: observing, recording and interpreting 
SN  - 086950817x
U1  - 570 
PY  - 1990///
CY  - Cheltenham
PB  - Stanley thornes
KW  - Biology
ER  -