By Brink, Daniel S., Domingo, Placedo, Scotto, Renata, Bruson, Renato, Puccini, Giacomo
By Smyth, P.
By Paul Edwards, etc., Edwards, Paul
By Elton Boocock
By Superbrands UK
By Laura Hill, Laura Hill
By Smith, Mr P R
By Paul Avins
By Chai, Eddie
By Paula Gardner
By Johnson, Gary
By et al., David Bowen
By Speiser, Stuart M.
By Kay, Roger, Sewell, Tim
By Samli, A. Coskun
By Kuzdrall, Paul J., Britney, Robert R.
By Cody, Thomas G.
By Writer's Digest Books
By Collier, Oscar, Leighton, Frances Spatz
By Hill, S., Rifkin, G.
By Geoffrey A. Moore;Moore, Geoffrey A. Moore
By Dailey, Thomas F.
By Peter M. Roget
By Hagel, John, Singer, Marc
By Michael E Porter
By Blattberg, Robert C., etc.
By Knowles, Sam
By Oppenheim, Selina