![The Wonderful Opportunity. An Appeal, by J. W. Petavel, with Forewords by Commissioner Lamb, Salvation Army, and by W. A. Mackensie, Secretary general, Save the Children International Union. — Lyon, impr. Noirclerc et Fenetrier, in-8 (16 × 42), VIII et 98 p.]()
The Wonderful Opportunity. An Appeal, by J. W. Petavel, with Forewords by Commissioner Lamb, Salvation Army, and by W. A. Mackensie, Secretary general, Save the Children International Union. — Lyon, impr. Noirclerc et Fenetrier, in-8 (16 × 42), VIII et 98 p.J. D., · Revue Internationale de la Croix-Rouge et Bulletin international des Sociétés de la Croix-Rouge · 1931