Cita APA (7th ed.)

Reader's Digest Association. (1994). Reader's Digest book of facts (2nd ed.). Reader's Digest.

Cita Chicago (17th ed.)

Reader's Digest Association. Reader's Digest Book of Facts. 2nd ed. Auckland: Reader's Digest, 1994.

Cita MLA (9th ed.)

Reader's Digest Association. Reader's Digest Book of Facts. 2nd ed. Reader's Digest, 1994.