Ayrmann, C. F. (1745). Christoph. Frider. Ayrmanni Programma de sigillis secretis Landgraviorum Hassiae veterum. Lammers.
Cita Chicago (17th ed.)Ayrmann, Christoph Friedrich. Christoph. Frider. Ayrmanni Programma De Sigillis Secretis Landgraviorum Hassiae Veterum. Giessae: Lammers, 1745.
Cita MLA (8th ed.)Ayrmann, Christoph Friedrich. Christoph. Frider. Ayrmanni Programma De Sigillis Secretis Landgraviorum Hassiae Veterum. Lammers, 1745.
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