PENULIS WILLIAM DODGE LEWIS, AM.,Pd.D.,Litt.D., HENRY SIEDEL CANBY, Ph.D., THOMAS KITE BROWN, Jr.,P.h.D., PENERBIT : THE JOHN C. WINSTON COMPANY.  PHILADELPHIA. 1926. DESKRIPSI FISIK : XVII, 1489 HALAMAN : ILLUSTRASI ; 22 CM.