Παραπομπή APA

Gray, J. W. R. (1963). Parliamentary procedure: A programmed introduction. Scott, Foresman and Co.

Παραπομπή Chicago Style

Gray, John W. Rea. Parliamentary Procedure: A Programmed Introduction. USA: Scott, Foresman and Co, 1963.

Παραπομπή MLA

Gray, John W. Rea. Parliamentary Procedure: A Programmed Introduction. Scott, Foresman and Co, 1963.