Citazione Stile APA (7a Edizione)

Riddle, D. I., & Sutcliffe, L. G. (1997). Successful services exporting: A handbook for firms, associations and governments. ITC.

Citazione stile Chigago Style (17a edizione)

Riddle, Dorothy I., e Leni G. Sutcliffe. Successful Services Exporting: A Handbook for Firms, Associations and Governments. Geneva: ITC, 1997.

Citatione MLA (9a ed.)

Riddle, Dorothy I., e Leni G. Sutcliffe. Successful Services Exporting: A Handbook for Firms, Associations and Governments. ITC, 1997.