John Dinsmore
Unknown Author
Leonard Stout Kenworthy
Lawrence J. Barkwell
Sunderland Polytechnic. Library.
American Ceramic Society. Refractories Division.
Purdue University.
B. A. J. Winslade
Waldo Gifford Leland
Army Library (U.S.)
Katalin Harkanyi
L. Saudargienė
Sylvanus Griswold Morley
I. L. Belenʹkiĭ
Dante Alighieri
William Shakespeare
Barbara Sanduleak
National Research Council. Highway Research Board. Committee on Mineral Aggregates
George Daniel Martin Cunha
Victoria Irons Walch