1
by Ahrens, W. 1872-1927.
Published 1916
Book Electronic
2
by Dornseiff, Franz, 1888-1960.
Published 1922
Book Electronic
3
by Bang, A. Chr. 1840-1913.
Published 1901
Book Electronic
4
Book Electronic
6
9
by Papus, 1865-1916.
Published 1911
Book Electronic
10
Book Electronic
12
Book Electronic
13
by Ennemoser, Joseph, 1787-1854.
Published 1980
Book Electronic
16
Book Electronic
17
Book Electronic
18
by Leuba, James Henry, 1868-1946.
Published 1909
Book Electronic
19
by Karasawa, Shōkaku.
Published 1922
Book Electronic
20
by Haddon, Alfred C. 1855-1940.
Published 1921
Book Electronic