Smith, W. D. P. 1. (1913). Contributions to the stratigraphy and fossil invertebrate fauna of the Philippine Islands. Bureau of Print.
Citace podle Chicago (17th ed.)Smith, Warren Du Pre 1880. Contributions to the Stratigraphy and Fossil Invertebrate Fauna of the Philippine Islands. Manila: Bureau of Print, 1913.
Citace podle MLA (9th ed.)Smith, Warren Du Pre 1880. Contributions to the Stratigraphy and Fossil Invertebrate Fauna of the Philippine Islands. Bureau of Print, 1913.
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