APA (7th ed.) Citation

Lewis, L. S. (2012). Paper-folding by L.S. Lewis. Adam Matthew Digital.

Chicago Style (17th ed.) Citation

Lewis, L. S. Paper-folding by L.S. Lewis. Marlborough, England: Adam Matthew Digital, 2012.

MLA (9th ed.) Citation

Lewis, L. S. Paper-folding by L.S. Lewis. Adam Matthew Digital, 2012.

Warning: These citations may not always be 100% accurate.