The plays are 1947's "La Petite Hutte" (The Little Hut)1 and 1951's "Lorsque l’Enfant Paraît" (When the Child Appears).
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Here is some additional French vocabulary from the covers:
- chefs-d'oeuvre = masterpieces
- le livre de poche = paperback
- texte Intégral = full text
1. "La Petite Hutte" was adapted into the 1957 romantic comedy "The Little Hut," which starred David Niven, Stewart Granger and Ava Gardner. Most imdb.com reviewers pan the movie as being overly silly, full of continuity errors and, some say, too watered down from Roussin's risqué play.