The listed "Reprise" textbook is a single softcover book that contains the textbook, workbook, and answer key all together.
Reprise : a French grammar review worktext, Author: David M. Stillman, Ronni L. Gordon., Publisher: McGraw-Hill 2nd ed. 2007
English grammar for students of French : the study guide for those learning French, Author: Jacqueline Morton ; with the collaboration of Helene Neu., Publisher: Olivia and Hill Press 6th ed. 2009