Citazione Stile APA (7a Edizione)

JOSHUA, S. (2016). TUNE INTO GRAMMAR - FINE TUNE YOUR LANGUAGE - CLASS 4. PEARSON.

Citazione stile Chigago Style (17a edizione)

JOSHUA, SWARNA. TUNE INTO GRAMMAR - FINE TUNE YOUR LANGUAGE - CLASS 4. NEW DELHI: PEARSON, 2016.

Citatione MLA (9a ed.)

JOSHUA, SWARNA. TUNE INTO GRAMMAR - FINE TUNE YOUR LANGUAGE - CLASS 4. PEARSON, 2016.