Pickford P. Pamela & Crowe R. Richard. (2000). Market Leader: Business English. Video Pack. Longman, 2000.
Citazione stile Chigago Style (17a edizione)Pickford P. Pamela e Crowe R. Richard. Market Leader: Business English. Video Pack. Longman, 2000, 2000.
Citatione MLA (9a ed.)Pickford P. Pamela e Crowe R. Richard. Market Leader: Business English. Video Pack. Longman, 2000, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.