Bol'shaya sovetskaya éntsiklopediya
By: Glavnyi redaktor: A.M. Prokhorov.
Contributors: Prokhorov, A. M.
Edition: 3. izdanie.
Publisher: Izdatel'stvo 'sovetskaya Entsiklopediya'
Published: 1970
Place of publication: Moskva
Language: rus
Notes: 30 vols. with index.