"It has been considered opportune to publish, before the completion of the Encyclopaedia of Islam, still another bilingual version of the Index of proper names for volume X. It should be noted that the present volume does not contain references to French articles beyond the entry Türk Odjaghi down to the end of the letter U, since the final French fascicules of volume X have not yet been published. Upon completion of the Encyclopaedia, including the supplement, the index will be published separately in English and French.--Preface to the seventh edition.
English and French.