21
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 17
22
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 11
23
Published: 1929
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 1
24
Published: 1929
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 15
25
Published: 1929
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 19
26
Published: 1929
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 20
27
Published: 1929
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 12
28
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge Index
29
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 12
30
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 14
31
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 20
32
Published: 1929
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 9
33
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 21
34
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 16
35
Published: 1929
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 8
36
Published: 1929
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 24
37
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 18
38
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 9
39
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 8
40
Published: 1963
Superior document: Encyclopaedia Britannica a new survey of universal knowledge 2