Сингмастер, Дэвид: различия между версиями

* ''[http://www.amazon.com/dp/0894900439 Notes on Rubik's magic cube]'', David Singmaster. Enslow Pub Inc, 1981. ISBN 0-89490-043-9. <ref>Review in [https://books.google.com/books?id=_0beD5LVNugC&pg=PA802 ''Restore your cube''], [[New Scientist]], 24 September 1981.</ref>

* ''[http://www.lutterworth.com/product_info.php?products_id=1356 Handbook of Cubik Math]'', David Singmaster and Alexander Frey. {{нп5|Lutterworth Press||en|Lutterworth Press}}, 1987. ISBN 0-7188-2555-1. <ref>Review in [https://books.google.com/books?id=1kYVZ0zS4dYC&pg=PA709 ''Around the cube''], [[New Scientist]], 9 September 1982.</ref>