APA
Krishna S., . (2012). Agriculture and a changing environment in northeastern india. New Delhi: Routledge.
Chicago
Krishna Sumi, . 2012. Agriculture and a changing environment in northeastern india. New Delhi: Routledge.
Harvard
Krishna S., . (2012). Agriculture and a changing environment in northeastern india. New Delhi: Routledge.
MLA
Krishna Sumi, . Agriculture and a changing environment in northeastern india. New Delhi: Routledge. 2012.