KELLS, LYMAN M.
Plane and spherical trigonometry, by Lyman M. Kells, Willis F. Kern & James R. Bland. 2d ed.
KELLS, LYMAN M. Plane and spherical trigonometry, by Lyman M. Kells, Willis F. Kern & James R. Bland. 2d ed. © 9Aug40; A142865. Lyman M. Kells, James R. Bland (A) & Anna Lee Kern (W); 22Apr68; R433731.
Lyman M. Kells, James R. Bland|A||Anna Lee Kern|W