APA

Gerras C., . (1976). The encyclopedia of common diseases. New York: Rodale Press.

Chicago

Gerras Charles, . 1976. The encyclopedia of common diseases. New York: Rodale Press.

Harvard

Gerras C., . (1976). The encyclopedia of common diseases. New York: Rodale Press.

MLA

Gerras Charles, . The encyclopedia of common diseases. New York: Rodale Press. 1976.