in progress; only "exact match" or "partial match" for single author names works at the moment, e.g. "Peter Smith" or "Pe Sm" but not "Smith Peter"
Mirza Badi'u'llah. Ameen Ullah Fareed, trans. Epistle to the Bahá'í World, An (1907). Letter from the half-brother of `Abdu'l-Bahá about Badi'u'llah's exit from, return to, and then exit again from the Bahá'í Faith. Histories.