Cita APA (7th ed.)
Gavela, M. D. F. (2015). The grammar and lexis of conversational informal English in advanced textbooks. Cambridge Scholars Publishing.
Cita Chicago (17th ed.)
Gavela, María Dolores Fernández. The Grammar and Lexis of Conversational Informal English in Advanced Textbooks. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2015.
Cita MLA (9th ed.)
Gavela, María Dolores Fernández. The Grammar and Lexis of Conversational Informal English in Advanced Textbooks. Cambridge Scholars Publishing, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.