Cita APA (7a ed.)

Bernard, N. (1660). A letter of Dr. Bernards to a friend of his at court. [publisher not identified].

Cita Chicago Style (17a ed.)

Bernard, Nicholas. A Letter of Dr. Bernards to a Friend of His at Court. [London?]: [publisher not identified], 1660.

Cita MLA (8a ed.)

Bernard, Nicholas. A Letter of Dr. Bernards to a Friend of His at Court. [publisher not identified], 1660.