00604cam a22002171 4500 1693107 BD-DhUL 20150129200737.0 730213s1955 enka 000 0 eng 56003699 DLC BD-DhUL BD-DhUL QA7 .S3 510 19 SAP Sawyer, W. W. (Walter Warwick), 1911- Prelude to mathematics / W. W. Sawyer. [Harmondsworth, Middlesex] : Penguin Books, [1955] 213 p. ill. 18 cm. A Pelican book, A327 Mathematics. ddc BK 4601 4601 0 0 ddc 0 510_000000000000000_SAP 0 NFIC 8140 DUSL DUSL GEN 2014-08-21 510 SAP A94989 2014-08-21 2 2014-08-21 BK