Cita APA (7th ed.)

Clarke, C. F. O. (1970). Police-community relations. Ditchley Foundation.

Cita Chicago (17th ed.)

Clarke, C F O. Police-community Relations. Ditchley Park, Eng.: Ditchley Foundation, 1970.

Cita MLA (8th ed.)

Clarke, C F O. Police-community Relations. Ditchley Foundation, 1970.