5 books
Leavening Agents; Yeast, Leaven, Salt-Rising Fermentation, Baking Powder, Aerated Bread, Milk Powder
Welding; Theory, Practice, Apparatus and Tests, Electric, Thermit and Hot-Flame Processes - Primary Source Edition
Welding
Welding; Theory, Practice, Apparatus and Tests, Electric, Thermit and Hot-Flame Processes
Leavening Agents