APA
(2007). Fertiliser and agriculture statistics: Southern region: Andhra Pradesh, Karnataka, Kerala, Pondichery & Tamil Nadu (2006-2007). Chennai: The Fertiliser Association of India.
Chicago
2007. Fertiliser and agriculture statistics: Southern region: Andhra Pradesh, Karnataka, Kerala, Pondichery & Tamil Nadu (2006-2007). Chennai: The Fertiliser Association of India.
Harvard
(2007). Fertiliser and agriculture statistics: Southern region: Andhra Pradesh, Karnataka, Kerala, Pondichery & Tamil Nadu (2006-2007). Chennai: The Fertiliser Association of India.
MLA
Fertiliser and agriculture statistics: Southern region: Andhra Pradesh, Karnataka, Kerala, Pondichery & Tamil Nadu (2006-2007). Chennai: The Fertiliser Association of India. 2007.