APA-viite (7. p.)
Backley, P. (2011). An introduction to element theory. Edinburgh University Press.
Chicago-viite (17. p.)
Backley, Phillip. An Introduction to Element Theory. Edinburgh: Edinburgh University Press, 2011.
MLA-viite (9. p.)
Backley, Phillip. An Introduction to Element Theory. Edinburgh University Press, 2011.
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