1 : New York Times_1980_January_01
2 : New York Times_1980_January_02
3 : New York Times_1980_January_03
4 : New York Times_1980_January_04
5 : New York Times_1980_January_05
6 : New York Times_1980_January_06
7 : New York Times_1980_January_07
8 : New York Times_1980_January_08
9 : New York Times_1980_January_09
10 : New York Times_1980_January_10
11 : New York Times_1980_January_11
12 : New York Times_1980_January_12
13 : New York Times_1980_January_13
14 : New York Times_1980_January_14
15 : New York Times_1980_January_15
16 : New York Times_1980_January_16
17 : New York Times_1980_January_17
18 : New York Times_1980_January_18
19 : New York Times_1980_January_19
20 : New York Times_1980_January_20
21 : New York Times_1980_January_21
22 : New York Times_1980_January_22
23 : New York Times_1980_January_23
24 : New York Times_1980_January_24
25 : New York Times_1980_January_25
26 : New York Times_1980_January_26
27 : New York Times_1980_January_27
28 : New York Times_1980_January_28
29 : New York Times_1980_January_29
30 : New York Times_1980_January_30
31 : New York Times_1980_January_31