Echo. (2013). Echo: Methode de francais B1.1. CLE International.
Chicago Style (17th ed.) CitationEcho. Echo: Methode De Francais B1.1. CLE International, 2013.
MLA (8th ed.) CitationEcho. Echo: Methode De Francais B1.1. CLE International, 2013.
Warning: These citations may not always be 100% accurate.