Editions of Casebook of the Black Widowers

222 pages

English language

Published Jan. 3, 1981 by Fawcett Crest.

182 pages

English language

Published Jan. 3, 1980 by Published for the Crime Club by Doubleday.

Paperback

Spanish language

Published June 3, 1991 by Alianza.

mass market paperback

French language

182 pages

English language

Published Jan. 3, 1980 by Gollancz.

255 pages

English language

Published Jan. 3, 1983 by Panther.

English language

Published Oct. 12, 1985 by Fawcett.