APA
(1999). Fertilizer and agriculture statistics: Southern region (Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Pondicherry) 1998-99. Chennai: FAI.
Chicago
1999. Fertilizer and agriculture statistics: Southern region (Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Pondicherry) 1998-99. Chennai: FAI.
Harvard
(1999). Fertilizer and agriculture statistics: Southern region (Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Pondicherry) 1998-99. Chennai: FAI.
MLA
Fertilizer and agriculture statistics: Southern region (Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Pondicherry) 1998-99. Chennai: FAI. 1999.