Editore: Baltimore: Johns Hopkins University School of Hygiene and Public Health Occasional Paper No. 5, 1989., 1989
Da: Truman Price & Suzanne Price / oldchildrensbooks, Monmouth, OR, U.S.A.
. (illustratore). FINE; as new. Paperwraps, 6.5x9.5", 25 pp. . . .