ISBN-13: 9781511641005 / Angielski / Miękka / 2015 / 126 str.
ISBN-13: 9781511641005 / Angielski / Miękka / 2015 / 126 str.
This is the third book in a series of books in recreational mathematics edited by Charles Ashbacher. He was the editor of "Journal of Recreational Mathematics" for the last eight volumes until it was discontinued.