Persons, Trevor B., Colorado Plateau Research Station Northern Arizona University, Flagstaff, AZ, United States

• The Canadian Field-Naturalist Vol. 133 No. 3 (2019) - Notes
  Axanthism in Green Frogs (Lithobates clamitans) and an American Bullfrog (Lithobates catesbeianus) in Maine
  Abstract  PDF
• The Canadian Field-Naturalist Vol. 133 No. 3 (2019) - Notes
  Spotless burnsi pattern in Northern Leopard Frog (Lithobates pipiens) in Maine
  Abstract  PDF