APA

Sinclair T., . (1951). A history of greek political thought. London: Routledge & Kegan Paul.

Chicago

Sinclair T.A, . 1951. A history of greek political thought. London: Routledge & Kegan Paul.

Harvard

Sinclair T., . (1951). A history of greek political thought. London: Routledge & Kegan Paul.

MLA

Sinclair T.A, . A history of greek political thought. London: Routledge & Kegan Paul. 1951.