APA

Pritchard W. R., . (1989). Future durections for veterinary medicine / William R. Pritchard. Durham: Pew National Veterinary Education Program.

Chicago

Pritchard William R, . 1989. Future durections for veterinary medicine / William R. Pritchard. Durham: Pew National Veterinary Education Program.

Harvard

Pritchard W. R., . (1989). Future durections for veterinary medicine / William R. Pritchard. Durham: Pew National Veterinary Education Program.

MLA

Pritchard William R, . Future durections for veterinary medicine / William R. Pritchard. Durham: Pew National Veterinary Education Program. 1989.