DE SALES, R. R. (2017). French verb drills. Mc Graw HIll Education.
Citazione stile Chigago Style (17a edizione)DE SALES, R.de Roussy. French Verb Drills. Mc Graw HIll Education, 2017.
Citatione MLA (9a ed.)DE SALES, R.de Roussy. French Verb Drills. Mc Graw HIll Education, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.