Editions of Foundation and Empire

English language

Published Feb. 24, 1972 by Avon Publishers.

English language

Published Jan. 24, 1994 by HarperCollins.

258 pages

French language

Published Oct. 8, 1976 by Éditions Denoël.

326 pages

Spanish language

Published Jan. 24, 1995 by Plaza & Janés Editores.

Dutch language

Published Sept. 17, 1985 by A W Bruna & zoon.

French language

Published Jan. 24, 1978 by Denoël.