Title: Encyclopædia universalis.
Date: 1968
Publisher: Encyclopædia universalis France,
Physical description: 20 v. : ill. (some col.) ; 30 cm.
Language: French
LC class: A
Contents: Vol. 17: "Organum" -- v. 18-20: "Thesaurus-index."
Notes: Vol. 17: "Organum"; v. 18-20: "Thesaurus-index."