Cita APA (7a ed.)

Snajdr, M. (1990). Bohemian Trilobites. Geological Survey.

Cita Chicago Style (17a ed.)

Snajdr, Milan. Bohemian Trilobites. Munich: Geological Survey, 1990.

Cita MLA (8a ed.)

Snajdr, Milan. Bohemian Trilobites. Geological Survey, 1990.