Beta mathemtics 1-4

Sonraí bibleagrafaíochta
Rannpháirtithe:	Goddard, T.T, Grattidge, A.W
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	Huddersfield Schofield & Sims c1969.
Ábhair:	Mathematics > Study and teaching.