APA (7th ed.) Citation

Grazia, A. (1970). Summula de libellis. Zanichelli.

Chicago Style (17th ed.) Citation

Grazia, Arrigo. Summula De Libellis. Bologna: Zanichelli, 1970.

MLA (9th ed.) Citation

Grazia, Arrigo. Summula De Libellis. Zanichelli, 1970.

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