FORSYTHE, C. E., & KELLER, I. A. (1972). Administration of high school athletics.-- ed.5. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)FORSYTHE, Charles E., agus Irvin A. KELLER. Administration of High School Athletics.-- Ed.5. Englewood Cliffs: Prentice Hall, 1972.
Lua MLA (9ú heag.)FORSYTHE, Charles E., agus Irvin A. KELLER. Administration of High School Athletics.-- Ed.5. Prentice Hall, 1972.
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