Todd, Lewis Paul, author
Harcourt, Brace & World, 1961
Buku Teks
Todd, Lewis Paul, author
Harcourt Brace Jovannovich, 1972
Buku Teks
Heller, Landis R., author
Charles E. Merrill, 1966
Buku Teks
edited by H.L. White ; foreword by Sir Robert Garran
Angus and Robertson, 1954
Buku Teks
edited by Edgar O. Edwards
University of Chicago Press, 1964
Buku Teks