Laird, E. (2009). The earthquake. Pearson Education Limited.
Cita Chicago Style (17a ed.)Laird, Elizabeth. The Earthquake. Harlow, Essex, England: Pearson Education Limited, 2009.
Cita MLA (9a ed.)Laird, Elizabeth. The Earthquake. Pearson Education Limited, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.