Citazione Stile APA (7a Edizione)
Gavela, M. D. F. (2015). The grammar and lexis of conversational informal English in advanced textbooks. Cambridge Scholars Publishing.
Citazione stile Chigago Style (17a edizione)
Gavela, María Dolores Fernández. The Grammar and Lexis of Conversational Informal English in Advanced Textbooks. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2015.
Citatione MLA (9a ed.)
Gavela, María Dolores Fernández. The Grammar and Lexis of Conversational Informal English in Advanced Textbooks. Cambridge Scholars Publishing, 2015.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.