APA

Simpson A. M., Harkin K. R. & Hoskinson J. J. (20001219). Radiographic diagnosis: nasopharyngeal foreign body in a dog. : Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association.

Chicago

Simpson A M, Harkin K R and Hoskinson J J. 20001219. Radiographic diagnosis: nasopharyngeal foreign body in a dog. : Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association.

Harvard

Simpson A. M., Harkin K. R. and Hoskinson J. J. (20001219). Radiographic diagnosis: nasopharyngeal foreign body in a dog. : Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association.

MLA

Simpson A M, Harkin K R and Hoskinson J J. Radiographic diagnosis: nasopharyngeal foreign body in a dog. : Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association. 20001219.