APA
USHA MATHEW, Dr. ALICE ABRAHAM, . (1999). STATUS AND IMPACT OF HEAVY METALS IN SELECTED SOILS AND CROPS OF KERALA. COLLEGE OF AGRICULTURE VELLAYANI: DEPARTMENT OF SOIL SCIENCE AND AGRICULTURAL CHEMISTRY.
Chicago
USHA MATHEW, Dr. ALICE ABRAHAM, . 1999. STATUS AND IMPACT OF HEAVY METALS IN SELECTED SOILS AND CROPS OF KERALA. COLLEGE OF AGRICULTURE VELLAYANI: DEPARTMENT OF SOIL SCIENCE AND AGRICULTURAL CHEMISTRY.
Harvard
USHA MATHEW, Dr. ALICE ABRAHAM, . (1999). STATUS AND IMPACT OF HEAVY METALS IN SELECTED SOILS AND CROPS OF KERALA. COLLEGE OF AGRICULTURE VELLAYANI: DEPARTMENT OF SOIL SCIENCE AND AGRICULTURAL CHEMISTRY.
MLA
USHA MATHEW, Dr. ALICE ABRAHAM, . STATUS AND IMPACT OF HEAVY METALS IN SELECTED SOILS AND CROPS OF KERALA. COLLEGE OF AGRICULTURE VELLAYANI: DEPARTMENT OF SOIL SCIENCE AND AGRICULTURAL CHEMISTRY. 1999.