FELKER, C. A.
Aviation mathematics, by C. A. Felker, E. A. Schweinhagen & H. W. Paine.
FELKER, C. A. Aviation mathematics, by C. A. Felker, E. A. Schweinhagen & H. W. Paine. © 20Apr44; A180272. C. A. Felker (A); 8Feb72; R522697.
C. A. Felker|A