Evans V & Dooley J. Jenny. (2009). Upstream Elementary A2: Teacher's Book. Newbury, Express Publishing, 2009.
Citazione stile Chigago Style (17a edizione)Evans V e Dooley J. Jenny. Upstream Elementary A2: Teacher's Book. Newbury, Express Publishing, 2009, 2009.
Citatione MLA (9a ed.)Evans V e Dooley J. Jenny. Upstream Elementary A2: Teacher's Book. Newbury, Express Publishing, 2009, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.