Missionary Servanthood and Practical Authority (Audio Book) by R. E. Patenaude. (2011) Part 8 - The pros and cons of the deputation process ; Missionary families as parts of teams ; Single (un-married) missionaries ; The missionary on the field. Look for the Introduction, Parts 1 through 7, and for subsequent parts in mp3 as well. PDF file of the entire booklet, for reading is available.
