APA

National Cancer Institute (U.S.), . (1988). What you need to know about cancer of the skin. [Washington, D.C: .

Chicago

National Cancer Institute (U.S.), . 1988. What you need to know about cancer of the skin. [Washington, D.C: .

Harvard

National Cancer Institute (U.S.), . (1988). What you need to know about cancer of the skin. [Washington, D.C: .

MLA

National Cancer Institute (U.S.), . What you need to know about cancer of the skin. [Washington, D.C: . 1988.