Sargent portraits of artists and friends / Richard Ormond [aut]; Elaine Kilmurray [collab.]; Trevor Fairbrother [collab.]; Barbara Dayer Gallati [collab.]; Erica E. Hirshler [collab.]; Marc Simpson [collab.]; H. Barbara Weinberg [collab.]; National Portrait Gallery (Londen) [aut]; Metropolitan Museum of Art (New York, N.Y.) [aut].