Billanovich, G., & Piras-Rüegg, E. (1976). Petrarca und der Ventoux. Petrarca, 444-463.
Chicago Style (17th ed.) CitationBillanovich, Giuseppe, and Elisabeth Piras-Rüegg. "Petrarca Und Der Ventoux." Petrarca 1976: 444-463.
MLA (9th ed.) CitationBillanovich, Giuseppe, and Elisabeth Piras-Rüegg. "Petrarca Und Der Ventoux." Petrarca, 1976, pp. 444-463.
Warning: These citations may not always be 100% accurate.