10 books found
David Singmaster · First published 2020
Alexander H. Frey Jr, David Singmaster · First published 2020
David Singmaster · First published 2015
Sam Loyd, David Singmaster · First published 2012
Alexander Frey Jr., David Singmaster · First published 2001
David Singmaster · First published 1993
David Singmaster · First published 1987
Ernő Rubik, David Singmaster · First published 1981
David Singmaster · First published 1980
