Laws, S. H. (2003). Research for development: A practical guide. Vistaar Publication.
Lua i Stíl Chicago (17ú heag.)Laws, Sophie; Harper. Research for Development: A Practical Guide. New Delhi: Vistaar Publication, 2003.
Lua MLA (8ú heag.)Laws, Sophie; Harper. Research for Development: A Practical Guide. Vistaar Publication, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.