Robert A. Hall, Jr., Margarida F. Reno & Vincenzo Cioffari.
Spoken Portuguese, units 13-30; U. S. A. F. I. edition.
R556711. Spoken Portuguese, units 13-30; U. S. A. F. I. edition. By Robert A. Hall, Jr., Margarida F. Reno & Vincenzo Cioffari. © 4Sep45; AA492207. D. C. Heath and Company, division of Raytheon Company (PWH); 2Aug73; R556711.
D. C. Heath and Company, division of Raytheon Company|PWH