Cita APA (7a ed.)

Roberts, B. C. (1958). The Trades Union Congress, 1868-1921. Allen & Unwin.

Cita Chicago Style (17a ed.)

Roberts, Benjamin Charles. The Trades Union Congress, 1868-1921. London: Allen & Unwin, 1958.

Cita MLA (9a ed.)

Roberts, Benjamin Charles. The Trades Union Congress, 1868-1921. Allen & Unwin, 1958.