Editions of "Dirk Gently's Holistic Detective Agency"

Paperback

Spanish language

Published Dec. 7, 1993 by Anagrama.

Audio Cassette

English language

Published June 7, 2001 by New Millennium Audio.

Hardcover

English language

Published Jan. 14, 1990 by Random House Value Publishing.

Audio Cassette

English language

Published June 1, 1993 by Simon & Schuster Audio.

247 pages

English language

Published Aug. 7, 1988 by Pan Books.

247 pages

English language

Published Nov. 6, 1987 by Heinemann.

310 pages

English language

Published Nov. 6, 1987 by Pocket Books.