sound way of learning mathematics
By: Laurie Buxton, Pam Buxton, Basil Norbury. Part 4, Graphs I, Geometry I.
Contributors: Buxton, Pam.; Norbury, Basil.; Sound Educational Audio Learning Ltd.
Publisher: Sound Educational Audio Learning
Published: 1987
Language: eng
Number of pages: 40
Subjects: Mathematics -- 1961-