APA-čujuhus (7. p.)
Gallup, G. A. (2002). Valence bond methods: Theory and applications. Cambridge University Press.
Chicago-čujuhus (17. p.)
Gallup, Gordon A. Valence Bond Methods: Theory and Applications. Cambridge ; New York: Cambridge University Press, 2002.
MLA-čujuhus (9. p.)
Gallup, Gordon A. Valence Bond Methods: Theory and Applications. Cambridge University Press, 2002.
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