11
Aquila, Richard
| Aquila, Richard |
2016
E-Book
12
Armstrong, Melanie
| Armstrong, Melanie |
2017
E-Book
13
Arner, George B. Louis
| Project Gutenberg |
2012
E-Book
14
Atwood, James E.
| Atwood, James E. |
2017
E-Book
17
Banfield, William C.
| Banfield, William C. |
2016
E-Book
18
Barbas, Samantha
| Barbas, Samantha |
2015
E-Book
19
Barnard, Charles Inman
| Project Gutenberg |
2012
E-Book