How many books did author M. Williams Phelps write?
52
3
3
3
2
4
3
5
2
4
3
5
2
4
3
5
2
4
1
3
5
2
4
1
3
5
2
4
1
3
5
2
4
1
3
5
2
4
1
3
5
2
4
1
3
0
5
6
2
4
1
3
5
6
2
0
7
4
1
3
5
6
2
7
4
1
0
3
5
6
2
7
4
1
3
0
5
6
2
7
4
1
3
8
5
6
2
0
7
4
1
3
8
5
6
2
7
4
1
0
3
8
5
6
2
7
9
4
1
3
11
8
0
5
6
2
7
9
4
1
11
8
5
6
2
0
7
9
4
1
11
8
5
6
2
7
9
4
1
0
10
11
8
5
6
7
9
1
10
12
13
11
8
0
6
7
9
1
10
12
13
11
16
8
6
0
7
9
1
10
12
13
11
16
8
6
7
9
0
10
12
13
11
16
8
14
6
7
9
10
12
13
11
16
8
0
102
66
123
132
0