Lang, R. J. (2011). Origami design secrets: Mathematical methods for an ancient art (2nd.). CRC Press.
Čikaški stil citiranja (17. izdanje)Lang, Robert J. Origami Design Secrets: Mathematical Methods for an Ancient Art. 2nd. Boca Raton: CRC Press, 2011.
MLA način citiranja (9. izdanje)Lang, Robert J. Origami Design Secrets: Mathematical Methods for an Ancient Art. 2nd. CRC Press, 2011.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.