R. H. Sprague

Development of Continuous-Tone Free-Radical Reproduction Materials.

R. H. Sprague, Morris Roscow, 1963 .

Color and Constitution. I. Halochromism of Anhydronium Bases Related to the Cyanine Dyes1

R. H. Sprague, C. P. Smyth, L. Brooker, 1940 .

Color and Constitution. X.1 Absorption of the Merocyanines2

R. H. Sprague, L. Brooker, G. H. Keyes, 1951 .