edited by Mark Blaug and Paul Sturges. edited by Eric Kay and Paul S. Bagus. edited by Marc J. Straus. edited by Mark C. Porter. edited by Mark T. Maybury. edited by Mark Elvin and G. William Skinner. edited by Derek Taylor and Paul Popper. edited by Mark A. Bedau, Carol Cleland. edited by Mark Ellingham & John Fisher. edited by Mark Graham and Fabian Ferrari.