Malik, R. P. S. (1982). Farm power in Punjab: A case study of Ludhiana District. Agricultural Economics Research Centre, University of Delhi.
Lua i Stíl Chicago (17ú heag.)Malik, R. P. S. Farm Power in Punjab: A Case Study of Ludhiana District. Delhi: Agricultural Economics Research Centre, University of Delhi, 1982.
Lua MLA (8ú heag.)Malik, R. P. S. Farm Power in Punjab: A Case Study of Ludhiana District. Agricultural Economics Research Centre, University of Delhi, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.