Oldham, C. (1917). Pisidium lilljeborgi in Carnarvonshire. Zenodo.
Cita Chicago (17th ed.)Oldham, Charles. Pisidium Lilljeborgi in Carnarvonshire. Zenodo, 1917.
Cita MLA (9th ed.)Oldham, Charles. Pisidium Lilljeborgi in Carnarvonshire. Zenodo, 1917.
Atenció: Aquestes cites poden no estar 100% correctes.