Sumathi, S. (2008). Marketing Research and Consumer Behaviour (1st.). Vikas Publishing House PVT LTD.
Citazione stile Chigago Style (17a edizione)Sumathi, S. Marketing Research and Consumer Behaviour. 1st. Noida: Vikas Publishing House PVT LTD, 2008.
Citatione MLA (9a ed.)Sumathi, S. Marketing Research and Consumer Behaviour. 1st. Vikas Publishing House PVT LTD, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.