Vandyshev
Logic. Basic concepts and principles (with logical exercises and tasks): educational book / V. N. Vandyshev. — Sumy: Sumy State University Publishers, 2010. — 143с.. — ISBN : 22. 00 грн.
	rubbk 87.4я73 81.432.1
	УДК 16(075.8)
ч/з1 — 16(075.8) / V26 [157724]