S.L. Chopra Analytical Agricultural Chemistry - Ludhiana Kalyani Publishers 1991 - 500p S.L. Chopra & J.S. Kanwar: Analytical Agricultural Chemistry. Ludhiana. Kalyani Publishers, 1991. 81-7096-444-x--(630.24CHO) ENGLISH ISBN: 81-7096-444-x Dewey Class. No.: 630.24 / CHO