Intensive Agriculture. v.14, 1976-77
Verma, Ravi, ed.
Intensive Agriculture. v.14, 1976-77 edited by Ravi Verma - New Delhi Directorate of Extension 1976 - v.14, varies p.; 27cm.
Intensive Agriculture. v.14, 1976-77 edited by Ravi Verma - New Delhi Directorate of Extension 1976 - v.14, varies p.; 27cm.
