Spira, Francesco, -1548 (Personal Name)
- Spera, Francis, -1548
- Spiera, Francisco, -1548
- Spiera, Franciszek, -1548
- Spiere, François, -1548
- Earlier heading: Spira, Francesco, d. 1548
- Spira, Francis, -1548
Friswell, J.H. Francesco Spira, 1865.
InU/Wing STC files (usage: François Spiere; Francis Spira; Francisco Spiera)
Murzynowski, S. Historyja żałosna a straszliwa o Franciszku Spierze, 1986: p. xxvi (Franciszek Spiera (1502-1548))
LC data base, 11/28/84 (hdg.: Spira, Francesco, d. 1548)
Gribaldi, M. A notable and maruailous epistle of the famous Doctor Mathewe Gribalde ... concerning the terrible iudgement of god ..., 1550: p. 11 (Francis Spera).