TY  - BOOK
AU  - Spedding, C. R. W. ,
TI  - Vegetable Productivity
SN  - 0333310918
U1  - 635 
PY  - 1981///
CY  - London
PB  - Macmillan Publishing Company
KW  - Garden crops (Horticulture)
KW  - Vegetables
ER  -