APA (7th ed.) Citation

Nik & Nik. (2013). The Gaturro's Brutish english: Method 2. Sudamericana.

Chicago Style (17th ed.) Citation

Nik and Nik. The Gaturro's Brutish English: Method 2. Buenos Aires: Sudamericana, 2013.

MLA (9th ed.) Citation

Nik and Nik. The Gaturro's Brutish English: Method 2. Sudamericana, 2013.