In Russian. Malyshev, Igor Vladimirovich. The theory of duality in the reflection of economic acts in accounting. Moscow: Statistics, 1971. Teoriya dvoystvennosti otrazheniya khozyaystvennykh aktov v bukhgalterskom uchete. In Russian /The theory of duality in accounting accounting . All images are for identification of editions only. Several books of the same edition may be available. Please feel free to request photos of available books. SKU7352498