Learning ladder. [electronic resource].
London : Dorling Kindersley,
[1999]
Accompanied in jewel case by sampler disc.
Jewel case issued in card box.
Title from opening screen.
Minimum system requirements: IBM compatible PC; 486DX2/66 MHz processor; 12MB RAM for Windows 95, 16MB RAM for Windows 98; Windows 95/98; 6MB of free hard disk space.
Minimum system requirements: Macintosh; any PowerPC; 16MB RAM; System 7.5.3 or later; 6MB of free hard disk space.
Reading (Elementary)
English language
Mathematics