Cita APA (7th ed.)
Whitted, G. W. Guía mundial / [por] Gerald W. Whited.
Cita Chicago (17th ed.)
Whitted, Gerald W. Guía Mundial / [por] Gerald W. Whited.
Cita MLA (9th ed.)
Whitted, Gerald W. Guía Mundial / [por] Gerald W. Whited.
Atenció: Aquestes cites poden no estar 100% correctes.