A specialized problem collection on integers and combinatorics from the University Mathematics series. For those who are Masters of Integers, there are a few sections with highlighting. The integer section comes with separate double-sided printouts. - Title: University Mathematics Master of Integers - Series Name: Field-Specific Problem Series - Title: University Mathematics Master of Combinatorics - Series Name: Field-Specific Problem Series - ISBN: 978-4-86742-017-5 - Publisher: Tokyo Shuppan