Williams, M., Stone, P., Siveter, D., & Taylor, P. (2001). Upper Ordovician ostracods from the Cautley district, northern England: Baltic and Laurentian affinities.
Citace podle Chicago (17th ed.)Williams, M., P. Stone, D. Siveter, a P. Taylor. Upper Ordovician Ostracods from the Cautley District, Northern England: Baltic and Laurentian Affinities. 2001.
Citace podle MLA (9th ed.)Williams, M., et al. Upper Ordovician Ostracods from the Cautley District, Northern England: Baltic and Laurentian Affinities. 2001.
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