BL database, 1 Dec. 2011 (hdg.: Layard, Richard, 1934-; old hdg.: Layard, Peter Richard Grenville; usage: almost exclusively Richard Layard)
London School of Economics and Political Science website, viewed on June 27, 2016: Centre for Economic Performance, staff biography (Prof. Richard Layard; Programme Director, Wellbeing) CV (Richard Layard; Peter Richard Grenville Layard (Lord Layard of Highgate); b. 1934; Director, Wellbeing Programme, 2003-; Emeritus Professor of Economics, LSE, 1999-)