Intensive Agriculture. v.12, 1974-75
Verma, Ravi, ed.
Intensive Agriculture. v.12, 1974-75 edited by Ravi Verma - New Delhi Directorate of Extension 1974 - v.12, varies p.; 28cm.
Intensive Agriculture. v.12, 1974-75 edited by Ravi Verma - New Delhi Directorate of Extension 1974 - v.12, varies p.; 28cm.
