Title: un voyage en arcturus

Language: French

Translator: Claude Saunier

Publisher: Editions Denoël, France

Binding: Paperback

Date of issue: August 1975 (Printed August 1975, copyrighted 1976. Date of issue quoted by Amazon as 19th March 1976.)

Publisher’s series: Présence du futur #207

ISBN: 2207302075

Page count: 348

Edition notes: There is another cover image I've found on the web, seemingly for the same edition. Not sure if this is a variant cover, or a later/earlier issue.

Variant cover images: