J. R. Ullrich

发表

J. R. Ullrich, J. R. Painter, 1974 .

George Karabatsos, James R. Ullrich, J. R. Ullrich, 2002, Mathematical Social Sciences.

J. R. Ullrich, R. Rolandelli, 1994, The Surgical clinics of North America.

J. R. Ullrich, B. D. Ackerman, M. Sosna, 1972, Biology of the neonate.