Business Guides, Inc. (1987). Directory of single-unit supermarket operators. Business Guides.
Citazione stile Chigago Style (17a edizione)Business Guides, Inc. Directory of Single-unit Supermarket Operators. [New York, NY: Business Guides, 1987.
Citatione MLA (9a ed.)Business Guides, Inc. Directory of Single-unit Supermarket Operators. Business Guides, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.