Francisci Petrarchae operum
Subtitle: tomus I [-IV]
Contributors: Herold, Johannes, 1514-1567; Squarciafico, Girolamo.; Petrarca, Francesco, 1304-1374
Publisher: Gregg Press
Published: 1965
Place of publication: Ridgewood, N.J
Language: lat
Number of pages: 1375
Other titles: Opera omnia
Notes: Reprint of the fourth edition (1554) of the collected works, and the first to contain the Italian verse (v.4); edited by J. Herold, with a life of Petrarca by C. Squarciafico.

Spine title: Opera omnia.