The present status of business executives in the public schools of the United States in cities of 25,000 and more inhabitants.

Bibliográfalaš dieđut
Váldodahkki: Heer, Amos Leonard 1886-
Materiálatiipa: Girji
Giella:eaŋgalasgiella
Almmustuhtton: Kent, Ohio s. n. n.d.
Fáttát: