TY  - BOOK
AU  - Ridgman W J
TI  - Experimentation in biology
U1  - G:(B28), L5 
PY  - 1975///
CY  - New York    
PB  -  John Wiley       
KW  -  Biostatistical
KW  - Biology
N1  - Appendices 225-230p
ER  -