Gray, J. W., & Rea, R. G. (1974). Parliamentary procedure: A programmed introduction (Rev. ed.). Scott, Foresman.
Chicago-čujuhus (17. p.)Gray, John Wylie, juo Richard G. Rea. Parliamentary Procedure: A Programmed Introduction. Rev. ed. Glenview, Ill.: Scott, Foresman, 1974.
MLA-čujuhus (9. p.)Gray, John Wylie, juo Richard G. Rea. Parliamentary Procedure: A Programmed Introduction. Rev. ed. Scott, Foresman, 1974.
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