Releases by Lang, Robert J. (http:/ / www.langorigami.com, Alamo, California, USA)

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Cover for Lang, Robert J. (http:/ / www.langorigami.com, Alamo, California, USA) · Origami Design Secrets: Mathematical Methods for an Ancient Art, Second Edition - AK Peters / CRC Recreational Mathematics Series (Paperback Book) (2011)

Origami Design Secrets: Mathemat... (2011)

Lang, Robert J. (http:/ / www.la...