Briggs, A., & Pollard, S. (1959). Robert Owen in Retrospect. A Co-operative Pioneer. Loughborough: Coperative Union.
Cita Chicago Style (17a ed.)Briggs, A., y Sidney Pollard. Robert Owen in Retrospect. A Co-operative Pioneer. Loughborough: Coperative Union, 1959.
Cita MLA (8a ed.)Briggs, A., y Sidney Pollard. Robert Owen in Retrospect. A Co-operative Pioneer. Loughborough: Coperative Union, 1959.
Precaución: Estas citas no son 100% exactas.