Otkupshchikov, I. V. (1973). K istokam slova: Rasskazy o nauke etimologii (Izd. 2., ispr. i don.). Proveshchenie.
Chicago Style (17th ed.) CitationOtkupshchikov, I︠U︡. V. K Istokam Slova: Rasskazy O Nauke Etimologii. Izd. 2., ispr. i don. Moskva: Proveshchenie, 1973.
MLA (9th ed.) CitationOtkupshchikov, I︠U︡. V. K Istokam Slova: Rasskazy O Nauke Etimologii. Izd. 2., ispr. i don. Proveshchenie, 1973.
Warning: These citations may not always be 100% accurate.