Elshafei, A. (1969). Statistical Distributions and Random Sampling: Exponential Distribution and Extensions. The Institute of National Planning.
Чикаго стиль цитування (17-те видання)Elshafei, Alwalid. Statistical Distributions and Random Sampling: Exponential Distribution and Extensions. Cairo: The Institute of National Planning, 1969.
Стиль цитування MLA (9-ме видання)Elshafei, Alwalid. Statistical Distributions and Random Sampling: Exponential Distribution and Extensions. The Institute of National Planning, 1969.