{{Cite| publisher = BRGM - Service géologique national| last1 = Dadet| first1 = Paul| last2 = Herrouin| first2 = Yves| last3 = Laville| first3 = P.| last4 = Paris| first4 = Florentin| title = Feuille 388 - Bain-de-Bretagne| location = Orléans| series = Carte géologique de la France à 1/50000| date = 1989}}