Gary B.Nash...[etal.] edite Gary B.Nash...[et al] edite David J.Anspaugh...[et al.] edite Richard G.Lipsey...[et al] edite Kathy Spurr...[et al] edite Richard Caves...[et al] edite Joni Seager...[et al.] edite Marvin Perry...[et al] edite P.Lynn McDonald...[et al.] edite Ephraim P.Smith...[et al]edite