Endnotes to "Soap"
Superscipt numbers in the web article titled "Soap" refer to the Endnotes listed here, immediately below. The superscripted numbers in the Endnotes, refer to the Bibliography, further down the page. The Endnotes list the title and author and page of the book or periodical and the Bibliography gives more detailed information about the book or periodical, such as the publisher, and the date of publication.

1. The Materials Handbook, 11th Edition, Brady and Clauser,¹ page 722
2. The Materials Handbook, 11th Edition, Brady and Clauser,¹ page 715
3. The Encyclopedia Britannica, 15th Edition, Macropedia,³ Volume 21, page 354. Web page here.
4. The Materials Handbook, 11th Edition, Brady and Clauser,¹ page 716.
5. McGraw-Hill Encyclopedia of Science and Technology, 8th Edition,² Volume 16, page 545.
6. The Materials Handbook, 11th Edition, Brady and Clauser,¹ page 722.

Bibliography to "Soap"

1. The Materials Handbook, an Encyclopedia for Managers, Technical Professionals, Purchasing and Production Managers, Technicians, Supervisors, and Foremen, 11th Edition, by George S Brady and Henry R Clauser, McGraw-Hill, © 1951-1977
2. McGraw-Hill Encyclopedia of Science and Technology, 8th Edition, © 1960-1997.
3. The New Encyclopedia Britannica, 15th Edition, © 1768-1998