Cita APA (7th ed.)

(2013). GUNS, GERMS,AND STEEL. NGHT LLC. PROGRAM.

Cita Chicago (17th ed.)

GUNS, GERMS,AND STEEL. INDIA: NGHT LLC. PROGRAM, 2013.

Cita MLA (9th ed.)

GUNS, GERMS,AND STEEL. NGHT LLC. PROGRAM, 2013.

Atenció: Aquestes cites poden no estar 100% correctes.