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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States National Museum. Bulletin و Ray S. Bassler. Contributions to the Biology of the Philippine Archipelago and Adjacent Regions: Bryozoa of the Philippine Region. Washington: Government Printing Office, 1929.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)United States National Museum. Bulletin و Ray S. Bassler. Contributions to the Biology of the Philippine Archipelago and Adjacent Regions: Bryozoa of the Philippine Region. Government Printing Office, 1929.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.