Steinbeck, John In dubious battle / John Steinbeck ; introduction and notes by Warren French. - London ; Toronto ; New York : Penguin Books, 2006 - xxiv, 274 p. couv. ill. en coul. 20 cm - Penguin classics. . ISBN: 978-0-14-303963-1 Subjects--Topical Terms: Migrant agricultural laborers -- Fiction.