Borovik, A., & Gardiner, T. (2019). The Essence of Mathematics Through Elementary Problems. Open Book Publishers.
Chicago Style (17th ed.) CitationBorovik, Alexandre, and Tony Gardiner. The Essence of Mathematics Through Elementary Problems. Open Book Publishers, 2019.
MLA (9th ed.) CitationBorovik, Alexandre, and Tony Gardiner. The Essence of Mathematics Through Elementary Problems. Open Book Publishers, 2019.
Warning: These citations may not always be 100% accurate.