Gray, D. E. (2013). Doing research in the real world (3rd edition.). Sage Publications.
Citazione stile Chigago Style (17a edizione)Gray, David E. Doing Research in the Real World. 3rd edition. Thousand Oaks, CA: Sage Publications, 2013.
Citatione MLA (8a ed.)Gray, David E. Doing Research in the Real World. 3rd edition. Sage Publications, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.