Liberty in Europe and Britain. By A.F. Titterton ... and Catherine B. Firth. (pt. 1. Liberty in Europe. By A.F. Titterton.-pt. 2. Liberty in Britain. By C.B. Firth.) [With a Supplement to Pt. 1 by C.B. Firth.].
Bible Studies in Outline. The Purpose of the Fourth Gospel. For Study Circles, Bible Classes and Individual Use ... With Simplified Assignments by Catherine B. Firth
History, Senior Course [With Teachers' Books.] ... General Editor: C.B. Firth. [With Teachers' Books.].
History, Junior Course ... General Editor, C.B. Firth. [Books 1-4, with "Teachers' Books" for Books 1 and 2, and Books 3 and 4.].
Road to Modern Europe, 1789-1964. Part 1. 1789-1945 by C. B. Firth. Part 2. 1945-1964 by R. A. Adcock