APA (7th ed.) Citation

Petrarca, F. Letters on familiar matters =: Rerum familiarium libri.

Chicago Style (17th ed.) Citation

Petrarca, Francesco. Letters on Familiar Matters =: Rerum Familiarium Libri.

MLA (8th ed.) Citation

Petrarca, Francesco. Letters on Familiar Matters =: Rerum Familiarium Libri.

Warning: These citations may not always be 100% accurate.