Lua APA (7ú heag.)

Evans V & Dooley J. Jenny. (2009). Upstream Elementary A2: Teacher's Book. Newbury, Express Publishing, 2009.

Lua i Stíl Chicago (17ú heag.)

Evans V agus Dooley J. Jenny. Upstream Elementary A2: Teacher's Book. Newbury, Express Publishing, 2009, 2009.

Lua MLA (9ú heag.)

Evans V agus Dooley J. Jenny. Upstream Elementary A2: Teacher's Book. Newbury, Express Publishing, 2009, 2009.

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