APA (7. basım) Alıntı

National Geographic Society. (1999). The complete National Geographic: 110 years of National Geographic magazine on CD-ROM. National Geographic Society.

Chicago Style (17. basım) Atıf

National Geographic Society. The Complete National Geographic: 110 Years of National Geographic Magazine on CD-ROM. Washington, D.C: National Geographic Society, 1999.

MLA (9th ed.) Atıf

National Geographic Society. The Complete National Geographic: 110 Years of National Geographic Magazine on CD-ROM. National Geographic Society, 1999.