Nelson, Wilton M. Los Testigos de Jehova, Quienes Son y Lo que Creen. El Paso, TX: Casa Bautista de Publicaciones, 1949. 1st .
5 1/4 x 7 1/2, 124 clean pp. Very good. Paperback. 
Inscribed and signed by the author to Bob McIntyre, 22/2/54. With two tracts against Jehovah's Witnesses laid in.
Wilton M. Nelson (1908-1884), b. in Nebraska; educated at Wheaton College, Dallas Theological Seminary, the Baptist Seminary of the South, and at Princeton Theological Seminary. He was for 42 years a missionary in Costa Rica, serving as Professor of Church History in el Seminario Biblico Latinoamericano in San José, Costa Rica.