Author: Koopman, Louis Jan.
Title: Work and Effort.
Description: Utrecht, Drukkerij Elinkwijk, Drukkerij Elinkwijk, 1965. Cloth. 156 pp.; 24.5x17.5 cm. Thesis University Utrecht. List of theses (stellingen) loose inserted. Signed and numbered copy, this is no 37/50. Text in English. Résumé en Français. (few spots to covers) Very good, see picture . Gewicht/Weight: 560 grs.

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