APA
(1977). Journal of the Practitioner. Shalford: Berk pharmaceutical Limited.
Chicago
1977. Journal of the Practitioner. Shalford: Berk pharmaceutical Limited.
Harvard
(1977). Journal of the Practitioner. Shalford: Berk pharmaceutical Limited.
MLA
Journal of the Practitioner. Shalford: Berk pharmaceutical Limited. 1977.