Wyss, J. D. (1987). The Swiss Family Robinson. Longman Group UK Ltd.
Cita Chicago Style (17a ed.)Wyss, Johann David. The Swiss Family Robinson. Longman Group UK Ltd, 1987.
Cita MLA (9a ed.)Wyss, Johann David. The Swiss Family Robinson. Longman Group UK Ltd, 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.