Productivity and risk evaluation in contrasting intercropping system s /
M.R. Rao and M. Singh.
- Nairobi : International Council for Research in Agroforestry, 1990.
- p. : ill., tables ; 23 cm.
- ICRAF reprint ; no. 72 .
Reprinted from Field crops research, 23: 279-93. 1990.