Spirou #1737 was published by Dupuis on July 1, 1971, as part of a series that began in 1938. André Franquin and Charles Degotte write, and art comes from Berck, Claude Pascal and Gos. This 56-page issue features Spirou, Gaston, Bill, Boule and Yoko Tsuno, among 8 characters cataloged on VerseDB.