APA

Gladden E. N., . (1966). The essential of public administration. London: Staples Press Limited.

Chicago

Gladden E N, . 1966. The essential of public administration. London: Staples Press Limited.

Harvard

Gladden E. N., . (1966). The essential of public administration. London: Staples Press Limited.

MLA

Gladden E N, . The essential of public administration. London: Staples Press Limited. 1966.