Geometra, J., & Littlewood, A. R. (1972). The Progymnasmata of Ioannes Geometres. Amsterdam.
Chicago Style aipamenaGeometra, Johannes, and Antony Robert Littlewood. The Progymnasmata of Ioannes Geometres. Amsterdam, 1972.
MLA aipamenaGeometra, Johannes, and Antony Robert Littlewood. The Progymnasmata of Ioannes Geometres. Amsterdam, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.