The Videodisc Compendium for Education and Training, 1993Richard A. Pollak · First published 1992Open the Tome
Explore Antarctica!, Incl. Laserdisc, Software and Tchr's. GuideRichard A. Pollak · First published 1991Open the Tome
The Videodisc Compendium for Education & Training, 1991-1992Richard A. Pollak · First published 1991Open the Tome
The Videodisc Compendium for Education and Training, 1990-1991Richard A. Pollak · First published 1990Open the Tome
The Videodisc Compendium for Education and Training, 1989-1990Richard A. Pollak · First published 1989Open the Tome
