Grooks
By: by Piet Hein ; (with the assistance of Jens Arup).
Contributors: Arup, Jens.
Publisher: Hodder Paperbacks
Published: 1969
Place of publication: London
Language: eng
Number of pages: 57
Notes: Originally published, Kobenhavn (Copenhagen): Borgens Forlag; Cambridge (Mass.): M.I.T. Press, 1966.