Texas Technological College. (1968). Brush control research progress report, 1968. Texas Technological College.
Lua i Stíl Chicago (17ú heag.)Texas Technological College. Brush Control Research Progress Report, 1968. Lubbock: Texas Technological College, 1968.
Lua MLA (8ú heag.)Texas Technological College. Brush Control Research Progress Report, 1968. Texas Technological College, 1968.
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