contoh kalimat 18th world science fiction convention

• The 18th World Science Fiction Convention, also known as Pittcon, was held September 3–5, 1960, at the Penn-Sheraton Hotel in Pittsburgh, Pennsylvania, United States.
  Konvensi Fiksi Ilmiah Sedunia ke-18, juga disebut sebagai Pittcon, diadakan pada 3–5 September 1960, di Penn-Sheraton Hotel, Pittsburgh, Pennsylvania, United States.