Template:Boucot, Johnson & Rubel, 1971
- Boucot, A.J., Johnson, J.G. & Rubel, M. 1971. Descriptions of Brachiopod Genera of Subfamily Virgianinae Boucot and Amsden, 1963. Eesti NSV Teaduste Akadeemia Toimetised, Keemia Geoloogia 20: 271–280, 6 plates.