TY  - BOOK
AU  - Weldon,George P.
TI  - Economic biology and vocational education: A study of agrictular and zoology 
SN  - 8170351391
U1  - 578.6 22
PY  - 1995///
CY  - Delhi
PB  - Daya publishing house
KW  - Economic Biology
N1  - Includes index
ER  -