Não informado. (1959). Russian Engineering Journal. Production Engineering Research Association.
Chicago-referens (17:e uppl.)Não informado. Russian Engineering Journal. Melton Mowbray, Inglaterra: Production Engineering Research Association, 1959.
MLA-referens (8:e uppl.)Não informado. Russian Engineering Journal. Production Engineering Research Association, 1959.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.