APA (7th ed.) Citation

Bellarmino, R. F. R. (1619). De officio principis Christiani libri tres. sumptibus Horatij Cardon.

Chicago Style (17th ed.) Citation

Bellarmino, Roberto Francesco Romolo. De Officio Principis Christiani Libri Tres. Lvgdvni [Lyon]: sumptibus Horatij Cardon, 1619.

MLA (8th ed.) Citation

Bellarmino, Roberto Francesco Romolo. De Officio Principis Christiani Libri Tres. sumptibus Horatij Cardon, 1619.

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