Cita APA (7a ed.)

1423211778851 Roy, E. (1964). Cooperatives, today and tomorrow. Danville (USA) Interstate Printers &​ Publishers.

Cita Chicago Style (17a ed.)

1423211778851 Roy, E.P. Cooperatives, Today and Tomorrow. Danville (USA) Interstate Printers &​ Publishers, 1964.

Cita MLA (8a ed.)

1423211778851 Roy, E.P. Cooperatives, Today and Tomorrow. Danville (USA) Interstate Printers &​ Publishers, 1964.

Cita IICA/CATIE

1423211778851 Roy, E. 1964. Cooperatives, today and tomorrow. Danville (USA) Interstate Printers &​ Publishers.