Sonectorum et cantilenarum liber. Triumphorum liber ... [etc.].

MLA

Petrarca, Francesco, et al. Sonectorum et cantilenarum liber. Triumphorum liber ... [etc.]. [Florence, Italy], [between 1470 and 1479]

APA

Petrarca, F., Bruni, L., Foresi, B., Constance L. Rosenthal Book Fund., Julia G.Haney Fund., Friends of the Library Endowment Fund. & Dante and Tasso Library Fund. (1470). Sonectorum et cantilenarum liber. Triumphorum liber ... [etc.]. [Florence, Italy].

Chicago

Petrarca, Francesco, Leonardo Bruni, Bastiano Foresi, Constance L. Rosenthal Book Fund., Julia G.Haney Fund., Friends of the Library Endowment Fund. and Dante and Tasso Library Fund. Sonectorum et cantilenarum liber. Triumphorum liber ... [etc.]. [Florence, Italy], [between 1470 and 1479]