Author
Barrera, Víctor Hugo
Crissman, Charles
Espinosa A., Patricio
5
Cole, Donald C.
3
Norton, George W.
3
Quishpe, David
2
Wood, Stanley
2
Alwang, Jeffrey
1
Antle, John
1
Basantes, L.
1
Bowen, Walter
1
Calderón, Luis
1
Edwards, C. Richard
1
Ellis, Mike
1
Escudero, Luis
1
Hamilton, Sarah
1
Heredia, Gerardo
1
Pérez, M.
1
Sherwood, Stephen
1
Stoorvogel, Jetse
1
Suárez, Carmen
1
Sánchez, Guillermo E.
1
Weller, Stephen C.
1
Williams, Roger
1
Yanggen, David
1