Lewis, H. (2000). Body language: A guide for professionals. Response Books.
Citazione stile Chigago Style (17a edizione)Lewis, Hedwig. Body Language: A Guide for Professionals. New Delhi ; Thousand Oaks, Calif.: Response Books, 2000.
Citatione MLA (8a ed.)Lewis, Hedwig. Body Language: A Guide for Professionals. Response Books, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.