APA
Wingatr P., . (1972). The Penguin medical encyclopedia. Penguin Books, England: .
Chicago
Wingatr Peter, . 1972. The Penguin medical encyclopedia. Penguin Books, England: .
Harvard
Wingatr P., . (1972). The Penguin medical encyclopedia. Penguin Books, England: .
MLA
Wingatr Peter, . The Penguin medical encyclopedia. Penguin Books, England: . 1972.