Practice in number

ग्रंथसूची विवरण
मुख्य लेखक:	Cordin, P.W
स्वरूप:	पुस्तक
भाषा:	English
प्रकाशित:	London Macmillan c1976.
श्रृंखला:	Macmillan's number in mathematics
विषय:	Mathematics > Study and teaching (Elementary). Numbers > Study and teaching. Mathematical recreation.