APA-viite (7. p.)
ebrary, Inc, & Rassias, J. M. (2010). Functional equations, difference inequalities, and Ulam stability notions (F.U.N.). Nova Science Publishers.
Chicago-viite (17. p.)
ebrary, Inc, ja John Michael Rassias. Functional Equations, Difference Inequalities, and Ulam Stability Notions (F.U.N.). New York: Nova Science Publishers, 2010.
MLA-viite (9. p.)
ebrary, Inc, ja John Michael Rassias. Functional Equations, Difference Inequalities, and Ulam Stability Notions (F.U.N.). Nova Science Publishers, 2010.
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