Book 32, 1973, SAM: Kenya, South Africa, Swaziland, Brazil, Uruguay, Argentina, Chile, Easter Island, Tahiti; Beef cattle and meat marketing Box 13
Book 33, 1974: Europe, England, USA; Livestock and meat industries; International Meat Trades Fair (W. Germany) Box 13
Book 34, 1976: Canada, USA, Japan; Beef cattle production; 7th World Hereford Conference (Canada) Box 13
Book 36, 1981: USA; Beef cattle production; 3rd World Congress, Santa Gertrudis Breeders, Texas Box 14