Autor
Barrera, Víctor Hugo
Norton, George W.
Debass, Thomas
2
Moore, Keith
2
Moyo, Sibusiso
2
Quishpe, David
2
Alwang, Jeffrey
1
Calderón, Luis
1
Crissman, Charles
1
Edwards, C. Richard
1
Ellis, Mike
1
Hamilton, Sarah
1
Suárez, Carmen
1
Sánchez, Guillermo E.
1
Taylor, Daniel B.
1
Weller, Stephen C.
1
Williams, Roger
1