1. 01. English Non Fiction Sound waves and light waves, by Kock, Winston E. Publication: Garden City, N.Y., Anchor Books, 1965 . xvi, 165 p. 18 cm. Date:1965 Availability: Copies available: (1), Actions:
2. 04. English Audio Visual Waves; Wind   Publication: Oakville, Ontario Magic Lantern Communications Ltd. 1995 . 1 Cassette (26 min.; 26 min.) 1/2 inch Date:1995 Availability: Copies available: (1), Actions: