S.P. Palaniappan Agricultural inputs and environment - Jodhpur Scientific Publishers 1995 - 445p S.P. Palaniappan: Agricultural inputs and environment. Jodhpur. Scientific Publishers, 1995. 81-7233-122-3--(631.5PAL) ENGLISH ISBN: 81-7233-122-3 Dewey Class. No.: 631.5 / PAL