Ahmad Sohrab and the New History Society, by Paul E. Haney, Horace Holley, Corinne True. (1958-01-14) Overview of the defection of Ahmad Sohrab and the formation of the "New History Society" and the "Caravan of East and West."
Bahá'í Cause, The, by Ahmad Sohrab. (1956) Brief overview of the Bahá'í Faith, with passing references to Sohrab's "New History Society."