Verma, S. P., Saxena, B. C., & Singh, H. P. (1981). A critical study on the changes in pattern of employment of rural working force in the milk-shed areas of Madhavaram milk supply scheme, Chingleput - Tamilnadu. Indian Agricultural Statistics Research Institute.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিVerma, S. P., B. C. Saxena, এবং H. P. Singh. A Critical Study on the Changes in Pattern of Employment of Rural Working Force in the Milk-shed Areas of Madhavaram Milk Supply Scheme, Chingleput - Tamilnadu. New Delhi: Indian Agricultural Statistics Research Institute, 1981.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিVerma, S. P., et al. A Critical Study on the Changes in Pattern of Employment of Rural Working Force in the Milk-shed Areas of Madhavaram Milk Supply Scheme, Chingleput - Tamilnadu. Indian Agricultural Statistics Research Institute, 1981.