English citations of Ido

  • 1995, C. K. Ogden, Psyche: An Annual General and Linguistic Psychology 1920-1952, C. K. Ogden, →ISBN, page 13:
    Study courses of Esperanto and Ido have been broadcast. In the possibility of radio uses of a constructed language — and such experiments are proving successful — vast sums of money and untold social forces may be involved.