International Standards -- Society of Motion Pictures and Television Engineers (SMPTE) -- Tettemer, Clair R. et al. The Fourth Annual Users Report on Helical-Scan VTRs and Videocassette Recorders (1973); [Diagram]: Proposed SMPTE Video Tape Standard Track Dimensions 9-3-58 [see box 2], September 3, 1958, 1973

International Standards -- Society of Motion Pictures and Television Engineers (SMPTE) -- Tettemer, Clair R. et al. The Fourth Annual Users Report on Helical-Scan VTRs and Videocassette Recorders (1973); [Diagram]: Proposed SMPTE Video Tape Standard Track Dimensions 9-3-58 [see box 2], September 3, 1958, 1973, 1.1.9, Box: 1, Folder: 9.0. Frederick M. Remley papers, 0057-MMC-NPBA. Special Collections and University Archives. https://archives.lib.umd.edu//repositories/2/archival_objects/173731 Accessed January 22, 2025.