In Russian. Vysotskaya, Sofya Onufrievna. Methods of collecting and studying fleas and their larvae. Leningrad: Science. Leningrad Branch, 1970. Metody sbora i izucheniya blokh i ikh lichinok. In Russian /Methods of collecting and studying fleas and their larvae . 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. SKU7312643