http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 sound cassette (approximately 30 min.) : analog, 1 7/8 ips ; 3 7/8 x 2 1/2 in., 1/8 in.
Sir John Gielguld [sic] as Holmes and Sir Ralph Richardson as Watson.