Charles P. Emerson and George Herbert Betts. Rev.
EMERSON, CHARLES PHILLIPS. Physiology and hygiene (Hygiene and health series, book 2)
EMERSON, CHARLES PHILLIPS. Physiology and hygiene, by Charles P. Emerson and George Herbert Betts. Rev. (Hygiene and health series, book 2) © 17Aug23, A752635. R73032, 17Jan51, Harlan Betts (C of George Herbert Betts) & Mrs. Walter A. Compton (C of Charles P. Emerson)
Harlan Betts|C of George Herbert Betts||Mrs. Walter A. Compton|C of Charles P. Emerson