Interactions of crops and livestock production in the generation of technology i
Cornick, T.R., Kirkby, R.A.
Interactions of crops and livestock production in the generation of technology i - Ithaca 1981 - 20 p. - No. 90; Cornell International .
636:63(069)
Interactions of crops and livestock production in the generation of technology i - Ithaca 1981 - 20 p. - No. 90; Cornell International .
636:63(069)