APA (7th ed.) Citation

Prokop, R. J., & Petr, V. (1993). New flexible crinoids from the Silurian and Devonian of the Czech Republic. Západočeské Muzeum.

Chicago Style (17th ed.) Citation

Prokop, Rudolf J., and Václav Petr. New Flexible Crinoids from the Silurian and Devonian of the Czech Republic. Plzeň: Západočeské Muzeum, 1993.

MLA (9th ed.) Citation

Prokop, Rudolf J., and Václav Petr. New Flexible Crinoids from the Silurian and Devonian of the Czech Republic. Západočeské Muzeum, 1993.