Gelber, H. G. (2004). It Could Have Been Otherwise: By Hester Goodenough Gelber. Brill.
Chicago-Zitierstil (17. Ausg.)Gelber, Hester Goodenough. It Could Have Been Otherwise: By Hester Goodenough Gelber. Leiden [u.a.]: Brill, 2004.
MLA-Zitierstil (8. Ausg.)Gelber, Hester Goodenough. It Could Have Been Otherwise: By Hester Goodenough Gelber. Brill, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.