1
by Fokker, Adriaan Daniel, 1887-
Published 1966
(CARLI) (Other Sources: (SICdb)192685, (UIUdb)711632)
Book
2
by Fokker, Adriaan Daniel, 1887-
Published 1975
(CARLI) (Other Sources: (EIUdb)332753, (UIUdb)262353)
Book