Gorkin, U. D. a. P. Reading, writing, and proving a closer look at mathematics. Springer.
Chicago-viite (17. p.)Gorkin, Ulrich Daepp and Pamela. Reading, Writing, and Proving a Closer Look at Mathematics. Springer.
MLA-viite (8. p.)Gorkin, Ulrich Daepp and Pamela. Reading, Writing, and Proving a Closer Look at Mathematics. Springer.
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