Autor
Beer, Ferdinand P.
3
Beer, Ferdinand P.,
2
Cornwell, Phillip J.
2
Cornwell, Phillip J.,
2
Johnston, E. Russel, Jr
2
Murrieta-Murrieta, Jesús Elmer,
2
Self, Brian P.,
2
Aguirre Aguilar, Jorge Eduardo,
1
Hibbeler, Russell C.
1
Johnston, E. Rusell
1
Johnston, E. Russel, Jr.,
1
Johnston, E. Russell, Jr.,
1