Small farmers III manual for collection of data in farm level in farming system
Doraswamy, G.
Small farmers III manual for collection of data in farm level in farming system - Petrolina 1984 - 122 p. - No. 28; Brasil EMBRAPA Centro .
63(069.1):631.58:309.1
Small farmers III manual for collection of data in farm level in farming system - Petrolina 1984 - 122 p. - No. 28; Brasil EMBRAPA Centro .
63(069.1):631.58:309.1