Howard, E. R. (1978). School discipline desk book. Parker Pub. Co..
Lua i Stíl Chicago (17ú heag.)Howard, Eugene R. School Discipline Desk Book. West Nyack, N.Y.: Parker Pub. Co., 1978.
Lua MLA (8ú heag.)Howard, Eugene R. School Discipline Desk Book. Parker Pub. Co., 1978.
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