Matches in Library of Congress for { ?s ?p Lectures and lecturing Audio-visual aids.. }
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- 71152037%2F%2Fr722 subject "Lectures and lecturing Audio-visual aids.".
- 73595022 subject "Lectures and lecturing Audio-visual aids.".
- 74133853 subject "Lectures and lecturing Audio-visual aids.".
- 79579759 subject "Lectures and lecturing Audio-visual aids.".
- 83115236 subject "Lectures and lecturing Audio-visual aids.".
- 89012690%2F%2Fr92 subject "Lectures and lecturing Audio-visual aids.".
- 89028521 subject "Lectures and lecturing Audio-visual aids.".