APA (7th ed.) Citation

The Reader's Digest Association Limited. (1990). Did you know?: New insights into world that is full of astonishing stories and astounding facts. The Reader's Digest Association Limited.

Chicago Style (17th ed.) Citation

The Reader's Digest Association Limited. Did You Know?: New Insights into World That Is Full of Astonishing Stories and Astounding Facts. London: The Reader's Digest Association Limited, 1990.

MLA (9th ed.) Citation

The Reader's Digest Association Limited. Did You Know?: New Insights into World That Is Full of Astonishing Stories and Astounding Facts. The Reader's Digest Association Limited, 1990.