- Author: Лахтин Ю.М. Коган Я.Д. (ред.)
- Language: Русский
- Year: 1976
- Author: Коган Б.И.
- Language: Русский
- Year: 2003
- Author: Дубинин Г.Н. Коган Я.Д.
- Language: Русский
- Year: 1979
- Author: А. М. Коган
- Language: Русский
- Year: 2005
- Author: Коган Г.М.
- Language: Русский
- Year: 1963
У врат мастерства
djvu
- Author: Коган Г.М.
- Language: Русский
- Year: 1956
- Author: Коган Г.М.
- Language: Русский
- Author: Коган А. Ф.
- Language: Русский
