Srein, Z. (1976). Planning the Volume of Investment the Long-run Period. The Institute of National Planning.
Чикаго стиль цитування (17-те видання)Srein, Zdenek. Planning the Volume of Investment the Long-run Period. Cairo: The Institute of National Planning, 1976.
Стиль цитування MLA (9-ме видання)Srein, Zdenek. Planning the Volume of Investment the Long-run Period. The Institute of National Planning, 1976.