APA Style

Geographic, T, N. (2009). The Complete National Geographic: Every Issue Since 1888 (Disc 6: October 1888-May 1925) . : Topics Entertainment.

MLA Style

Geographic, The, National. "The Complete National Geographic: Every Issue Since 1888 (Disc 6: October 1888-May 1925)". : Topics Entertainment, 2009. CD-ROM.