APA (7th ed.) Citation

Gorzelak, P., Blazejowski, B., Uchman, A., & Hanken, N. (2013). First record of catacrinid crinoid from the Lower Permian of Spitsbergen. Polish Polar Research, 34(2), 139.

Chicago Style (17th ed.) Citation

Gorzelak, Przemyslaw, Blazej Blazejowski, Alfred Uchman, and Nils-Martin Hanken. "First Record of Catacrinid Crinoid from the Lower Permian of Spitsbergen." Polish Polar Research 34, no. 2 (2013): 139.

MLA (9th ed.) Citation

Gorzelak, Przemyslaw, et al. "First Record of Catacrinid Crinoid from the Lower Permian of Spitsbergen." Polish Polar Research, vol. 34, no. 2, 2013, p. 139.