National Foundation for Educational Research in England and Wales & Downing, J. A. (1967). The i.t.a. symposium: Research report on the British experiment with i.t.a.
Chicago-viite (17. p.)National Foundation for Educational Research in England and Wales ja John A. Downing. The I.t.a. Symposium: Research Report on the British Experiment with I.t.a. Slough, 1967.
MLA-viite (8. p.)National Foundation for Educational Research in England and Wales ja John A. Downing. The I.t.a. Symposium: Research Report on the British Experiment with I.t.a. 1967.
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