1
by Betz, Louis Paul, 1861-1904.
Published 1968
(CARLI) (Other Sources: (CSUdb)196438, (ISLdb)447062)
Book
2
by Betz, Louis Paul, 1861-1904.
Published 1969
(CARLI) (Other Sources: (NEIdb)244796, (SICdb)580016)
Book
3
by Betz, Louis Paul, 1861-1904.
Published 1902
Book
4
by Betz, Louis Paul, 1861-1904.
Published 1897
(CARLI) (Other Sources: (NBYdb)234262)
Book