United State Information Agency, 1994
Buku Teks SO
VanSpanckeren, Kathryn
Lembaga Penerangan Amerika Serikat, 2001
Buku Teks SO
edited by Drinkwater, John; revised by Horace Shipp
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Buku Teks SO
Otis, William Bradley
Barnes & Noble, 1939
Koleksi Publik
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Barnes & Noble, 1939
Koleksi Publik