Wallwork. (2013). English for Academic Research: Writing Exercises (1.). Springer US.
Citazione stile Chigago Style (17a edizione)Wallwork. English for Academic Research: Writing Exercises. 1. Springer US, 2013.
Citatione MLA (8a ed.)Wallwork. English for Academic Research: Writing Exercises. 1. Springer US, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.