DePoy, E., & Gitlin, L. N. (2016). Introduction to research: Understanding and applying multiple strategies (Fifth edition.). Elsevier.
Citazione stile Chigago Style (17a edizione)DePoy, Elizabeth, e Laura N. Gitlin. Introduction to Research: Understanding and Applying Multiple Strategies. Fifth edition. St. Louis, Missouri: Elsevier, 2016.
Citatione MLA (9a ed.)DePoy, Elizabeth, e Laura N. Gitlin. Introduction to Research: Understanding and Applying Multiple Strategies. Fifth edition. Elsevier, 2016.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.