|
1
|
|
|
|
AY756
.P42
|
Pears Cyclopaedia 1977-78 : A book of background information and reference for everyday use .
|
London : Book Club Associates , 1977
|
Barker, L.Mary
|
|
2
|
|
|
|
RefAY67
.N5
W67
|
The World Almanac and Book of Facts .
|
New York : World Almanac Books , 2004
|
World Almanac Books
|