Schmitt, Carl, 1888-1985
Dunker & Humblot, 1954
Buku Teks
Sagan, Carl, author
Simon and Schuster , 1985
Buku Teks
Allendoerfer, Carl B., author
Macmillan, 1965
Buku Teks
Heyel, Carl, author
American Management Association, 1958
Buku Teks
Rogers, Carl R.
Charles E. Merrill, 1969
Buku Teks