Wood S. (1839). On the fossil shells of the Crag. <em>Magazine of Natural History.</em> 3: 460–465, pl. 7. page(s): 461, pl. 7 fig. 1. [details]
MolluscaBase eds. (2024). MolluscaBase. Bulla quadrata S. V. Wood, 1839. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=720738 on 2024-05-03
original descriptionWood S. (1839). On the fossil shells of the Crag. <em>Magazine of Natural History.</em> 3: 460–465, pl. 7. page(s): 461, pl. 7 fig. 1. [details]