United States National Museum. Bulletin & Bassler, R. S. (1929). Contributions to the biology of the Philippine Archipelago and adjacent Regions: Bryozoa of the Philippine region. Government Printing Office.
Chicago Style aipamenaUnited States National Museum. Bulletin and Ray S. Bassler. Contributions to the Biology of the Philippine Archipelago and Adjacent Regions: Bryozoa of the Philippine Region. Washington: Government Printing Office, 1929.
MLA aipamenaUnited States National Museum. Bulletin and Ray S. Bassler. Contributions to the Biology of the Philippine Archipelago and Adjacent Regions: Bryozoa of the Philippine Region. Government Printing Office, 1929.
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