Era
20th century
8
1945-
4
19th century
4
1990
3
1950-
2
1985-1991
2
1986-1991
2
Case studies
2
Cases
2
1564-1616
1
16th century
1
16th century --
1
1804-1881
1
1809-1898
1
1837-1901
1
1871-1918
1
1918-1945
1
1918-1981
1
1919-1947
1
1942 - 1945
1
1945-1962
1
1960-1980
1
20th Century
1
20th century --
1
Ching dynasty, 1644-1912
1
Conduct of life
1
Japan
1
Juvenile literature
1
Modern period, 1600-
1
Problems, exercises, etc
1
Psychology
1
Revolution, 1789-1799
1
Revolution, 1954-1962
1
Roman period, 55 B.C.-449 A.D.
1
South Pacific region
1
Study guides
1
United States
1
ca. 1717-1763
1
juvenile literature
1
social aspects
1
stories, plots, etc
1