-, -. (2012). Yakov Aleksandrovich Sigidin. IMA PRESS LLC.
Chicago Style (17th ed.) Citation-, -. Yakov Aleksandrovich Sigidin. IMA PRESS LLC, 2012.
MLA (9th ed.) Citation-, -. Yakov Aleksandrovich Sigidin. IMA PRESS LLC, 2012.
Warning: These citations may not always be 100% accurate.