In Russian. Medvedev, Vladimir Mikhailovich. The relationship between classroom and extracurricular classes in physics and engineering in a general education school. Kuibyshev: 1973. Vzaimosvyaz klassnykh i vneklassnykh zanyatiy po fizike i tekhnike v obshcheobrazovatelnoy shkole. In Russian/Relationship between in-school and out-of-school physics and technology classes in general education. 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. SKU7359334