Cita APA (7th ed.)
Zanatta, T. (2009). Howdy!: Level 2 student's book/ Theresa Zanatta. Richmond Publishing ; Santillana.
Cita Chicago (17th ed.)
Zanatta, Theresa. Howdy!: Level 2 Student's Book/ Theresa Zanatta. Buenos Aires: Richmond Publishing ; Santillana, 2009.
Cita MLA (9th ed.)
Zanatta, Theresa. Howdy!: Level 2 Student's Book/ Theresa Zanatta. Richmond Publishing ; Santillana, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.