Beyond positivism, 1982: CIP title page (Bruce J. Caldwell, University of North Carolina at Greensboro)

Contra Keynes and Cambridge, 1995 title page (Bruce Caldwell) back flap (professor of economics at University of North Carolina at Greensboro)

Hayek's challenge, 2003: CIP title page (Bruce J. Caldwell)

Hayek's challenge, 2004: title page (Bruce Caldwell)

University of North Carolina at Greensboro website (Bruce J. Caldwell; born 23 April 1952; economist; Ph.D. in economics in 1979) www.uncg.edu/bae/people/caldwell/vita

Email from University of Chicago Press, August 4, 2003 (re: Bruce J. Caldwell: author wishes to drop middle initial J.)

Hayek, Friedrich A. von. The sensory order, 2017: series title page (The collected works of F.A. Hayek / edited by Bruce Caldwell)

Bruce Caldwell's academic website, viewed December 22, 2017 (Bruce Caldwell, PhD; director, Center for the History of Political Economy, Duke University, Department of Economics; Ph. D. in economics in 1979 from the University of North Carolina at Chapel Hill; taught at University of North Carolina at Greensboro from 1978 to 2008; joined the faculty at Duke University in 2008; author of Contra Keynes and Cambridge; author of Hayek's challenge) http://public.econ.duke.edu/~bjc18/