Square two, a second start in mathematics [in 3vols]
Tammadge, Alan.
Williams, Leslie.
Roseveare, David.
British Broadcasting Corporation.
National Extension College.
London British Broadcasting Corporation,
1970
'"Square two" is one of three longer courses prepared by the B.B.C. in conjunction with the National Extension College of Cambridge and first broadcast in 1970 ... The course consists of 30 television programmes, divided into 3 terms, each with corresponding volume of this textbook ...' - Introduction
Mathematics.