Hartley, Carr

Parker, J.T.; Molenaar, F.; Carr Hartley 2024. Unilateral phacoemulsification in a captive bred greater one horned rhinoceros (Rhinoceros unicornis). British Association of Veterinary Ophthalmologists Poster - August 2024.

Irwin, T.; Carr Hartley; Achard, P.L. 1964. Want to adopt a Rhino?. Africana 2 (2): 14-15.

Hartley, Carr 1951. Letter of 20 February 1951 to Henry Ringling North offering the pair of northern white rhinos to the circus. Manuscript in Circus World Museum, Baraboo (contributed by Richard J. Reynolds).