APA
Singh R. D., Uttar Pradesh. Agricultural University D. o. A. E., Mehrotra M. K. & Sharma V. K. (1972). Marginal farmers and landless agricultural labourers in Ballia district of Uttar Pradesh. Pantnagar: Uttar Pradesh Agricultural University.
Chicago
Singh R D, Uttar Pradesh. Agricultural University Division of Agricultural Economic, Mehrotra M K and Sharma V K. 1972. Marginal farmers and landless agricultural labourers in Ballia district of Uttar Pradesh. Pantnagar: Uttar Pradesh Agricultural University.
Harvard
Singh R. D., Uttar Pradesh. Agricultural University D. o. A. E., Mehrotra M. K. and Sharma V. K. (1972). Marginal farmers and landless agricultural labourers in Ballia district of Uttar Pradesh. Pantnagar: Uttar Pradesh Agricultural University.
MLA
Singh R D, Uttar Pradesh. Agricultural University Division of Agricultural Economic, Mehrotra M K and Sharma V K. Marginal farmers and landless agricultural labourers in Ballia district of Uttar Pradesh. Pantnagar: Uttar Pradesh Agricultural University. 1972.