Cita APA (7a ed.)

Walls, E. (1921). Progressive copartnership. Nisbet & Co.

Cita Chicago Style (17a ed.)

Walls, Ernest. Progressive Copartnership. London: Nisbet & Co, 1921.

Cita MLA (9a ed.)

Walls, Ernest. Progressive Copartnership. Nisbet & Co, 1921.