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Authors
- Ziegler, Charles Edward, author1
- Ziegler, Ernst, 1849-19052
- Ziegler, Ernst, 1849-1905 author4
- Ziegler, S. Lewis (Samuel Lewis), 1861-1926 author2
- Ziemssen, H. von (Hugo), 1829-190217
- Zimmermann, C. (Charles) author9
- Zimmermann, C. (Charles), author1
- Zimmermann, Carl, Dr. author1
- Zimmermann, Johann Georg, 1728-17953
- Zinke, Gustav, -1922 author1
- Zinsser, Hans, 1878-1940 author1
- Zoethout, William D. (William Douwes), 1871-1959 author1
- Zollickoffer, William, 1793-18533
- Zolnowski, V. (Vincenzo)1
- Zöllner, Johann Karl Friedrich, 1834-1882 author1
- Zuill, W. L. (William L.), author1
- Zúñiga, Miguel.1