Annegret Nicolai, Robert Forsyth. First record of Vallonia costata (O. F. Müller, 1774) (Gastropoda, Eupulmonata, Valloniidae) from British Columbia, Canada, confirmed by partial-COI gene sequence.
Check List, Luís Felipe Toledo, 2019, 15 (2), pp.287-293.
⟨10.15560/15.2.287⟩.
⟨hal-02078202⟩