1981 Checkerbooks 10,000 Formulas and Trade Secrets Book, Vintage Chemicals

1981 Checkerbooks 10,000 Formulas and Trade Secrets Book, Industrial Guide Containing Ten Thousand Selected Household, workshop and scientific formulas, trade secrets, chemical recipes, processes & money saving ideas for the home, office, laboratory, factory and workshop. 1981 Checkerbooks 10,000 Formulas and Trade Secrets Book, Scientific Formulas Home Workshop Creations Potions Handbook