APA (7th ed.) Citation

Richardson, J. (1971). The "Commentariolum Petitionis".

Chicago Style (17th ed.) Citation

Richardson, John. The "Commentariolum Petitionis". 1971.

MLA (9th ed.) Citation

Richardson, John. The "Commentariolum Petitionis". 1971.

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