एपीए उद्धरण

Roy ,N K. (1996). Agro chemnical and sustainable agriculture. APC Publications Pvt Ltd.

शिकागो स्टाइल उद्धरण

Roy ,N K. Agro Chemnical and Sustainable Agriculture. New Delhi: APC Publications Pvt Ltd, 1996.

एमएलए उद्धरण

Roy ,N K. Agro Chemnical and Sustainable Agriculture. APC Publications Pvt Ltd, 1996.