21
Author: Wikingsson, Florence Brewster.
Published 1939
Record Source: Published Materials
Book
22
23
24
Author: Eckstein, Gustav, 1890-
Published 1931
Record Source: Published Materials
Book
26
27
Published 1965
Record Source: Published Materials
Journal
28
30
31
33
35
Author: Forman, Jonathan, 1887-
Published 1952
Record Source: Published Materials
Book
36
38
39
Author: Frazer, John E.
Published 1974
Record Source: Published Materials
Book
40