Cita APA (7a ed.)

SEWELL, R. (1988). Inprove Your Profits ...satisfying Customers Ron Sewell. W.H. Allen & Co Plc.

Cita Chicago Style (17a ed.)

SEWELL, Ron. Inprove Your Profits ...satisfying Customers Ron Sewell. W.H. Allen & Co Plc, 1988.

Cita MLA (8a ed.)

SEWELL, Ron. Inprove Your Profits ...satisfying Customers Ron Sewell. W.H. Allen & Co Plc, 1988.

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