41
Published: 1974
Superior document: World population year 1974
42
Published: 1974
Superior document: World population year 1974
43
Published: 1974
Superior document: World population year 1974
44
Published: 1974
Superior document: World population year 1974
45
Published: 1974
Superior document: World population year 1974
46
Published: 1974
Superior document: World population year 1974
47
Published: 1974
Superior document: World population year 1974
48
Published: 1974
Superior document: World population year 1974
49
Published: 1974
Superior document: World population year 1974
50
Published: 1974
Superior document: World population year 1974
51
Published: 1974
Superior document: World population year 1974
52
Published: 1974
Superior document: World population year 1974
53
Published: 1974
Superior document: World population year 1974
54
Published: 1974-
55
Published: 1995
56
Published: [ca., 2000]
57
Published: 1999
58
Published: 2007-