Several original titles, one translation title

[Rafael]

How I must input the original title of a book that never was one book but several and the translation is a compilation? Periods, commas what?

The titles are: Lettre à un otage (1944) (Letter to a Hostage), Lettres de jeunesse, 1923–1931 (1953) and Lettres à sa mère (1955).

And the original publication date?

The book is: http://www.goodreads.com/review/new/1...

[Cait]

The usual style is to use / as the divider, like so: Lettre à un otage / Lettres à sa mère / Lettres de jeunesse 1923-1931

For the original publication date, use the latest of the original publication dates of any of the included books, so 1955 in this case.

[Rafael]

Thanks, Cait.