TY  - BOOK
AU  - Rechcigl,M.
TI  - CRC handbook of agricultural productivity
SN  - 084933960 (set)
PY  - 1982///
CY  - Boca Raton, Fla.
PB  - CRC Press
KW  - Agricultural productivity
KW  - Agriculture
N1  - Includes bibliographies; v.1; Plant productivity -; v. 2. /t Animal productivity
ER  -