Eitemau Tebyg

• The Introduction of the American Brook Trout
  gan: Copley, Hugh.
  Cyhoeddwyd: (1953)
• The new Washington-Baltimore Checklist
  gan: Fernald, Merritt Lyndon
  Cyhoeddwyd: (1948)
• Status of the Northern Brook Lamprey, Ichthyomyzon fossor, in Canada
  gan: Lanteigne, Jacqueline
  Cyhoeddwyd: (1992)
• Frequency and Habitat of Tree Species in the Rain Forest of Ulu Kelantan
  gan: Whitmore, T. C. (Timothy Charles)
  Cyhoeddwyd: (1973)
• An Annotated Checklist Of The Scorpionflies (Mecoptera) Of Kentucky
  gan: Byers, George W., et al.
  Cyhoeddwyd: (1981)