Sally, C. (1992). TIMES ASIAN BUSINESS LIBRARY BUSINESS ETIQUETTE: An Essential Guide for Executives. Singapore : Time Books International.
Citazione stile Chigago Style (17a edizione)Sally, Chew. TIMES ASIAN BUSINESS LIBRARY BUSINESS ETIQUETTE: An Essential Guide for Executives. Singapore : Time Books International, 1992.
Citatione MLA (9a ed.)Sally, Chew. TIMES ASIAN BUSINESS LIBRARY BUSINESS ETIQUETTE: An Essential Guide for Executives. Singapore : Time Books International, 1992.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.