Shoen, Harriet H.
The L. W. Singer Company, 1955
Buku Teks
Todd, Lewis Paul, author
Harcourt Brace Jovannovich, 1972
Buku Teks
Neal, Harry Edward, author
Julian Messner, 1963
Buku Teks
Neal, Harry Edward, author
Julian Messner, 1967
Buku Teks
Moon, Glenn W., author
Holt, Rinehart and Winston, 1964
Buku Teks