Cita APA (7a ed.)

Hawtrey, R. G. (1925). The economic problem. Longmans, Green and Co.

Cita Chicago Style (17a ed.)

Hawtrey, Ralph George. The Economic Problem. London [etc.]: Longmans, Green and Co, 1925.

Cita MLA (9a ed.)

Hawtrey, Ralph George. The Economic Problem. Longmans, Green and Co, 1925.