Cita APA (7th ed.)

Christensen, C. R. (1978). Business policy: Text and cases (4th ed.). National Book Store.

Cita Chicago (17th ed.)

Christensen, Carl Roland. Business Policy: Text and Cases. 4th ed. Manila: National Book Store, 1978.

Cita MLA (9th ed.)

Christensen, Carl Roland. Business Policy: Text and Cases. 4th ed. National Book Store, 1978.