Learning ladder. [electronic resource].
London : Dorling Kindersley,
[1999?]
Title from case.
System requirements: IBM compatible PC; 486 processor; 12MB RAM for Windows 95, 16MB RAM for Windows 98; Windows 95/98; 6MB of free hard disk space.
System requirements: Macintosh; any PowerPC; 12MB RAM; System 7.5.3 or later; 6MB of free hard disk space.
Reading (Elementary)
English language
Mathematics