Duncan, F., & Glass, L. (2015). Amsterdam. Dorling Kindersley Limited.
Lua i Stíl Chicago (17ú heag.)Duncan, Fiona, agus Leonie Glass. Amsterdam. London: Dorling Kindersley Limited, 2015.
Lua MLA (9ú heag.)Duncan, Fiona, agus Leonie Glass. Amsterdam. Dorling Kindersley Limited, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.