To Read Productivity

2006 • 1 Reader

15 Readers • 3.8

1974 • 330 Readers • 417 pages • 3.8

2009 • 36 Readers • 341 pages • 3.3

2018 • 17 Readers

2014 • 214 Readers • 254 pages • 4.3

2019 • 83 Readers • 320 pages • 4.1