Yamamori, Tetsunao, 1937-, Penetrating missions' final frontier : a new strategy for unreached peoples / [print] Tetsunao Yamamori ; foreword by Dan Harrison. - Downers Grove, Illinois : InterVarsity Press, (c)1993. - 213 pages : illustrations, maps ; 21 cm. LCCN: 93035651 Subjects--Topical Terms: Missions--Theory. LC Class. No.: BV2063.Y19.P464 1993