Gaya APA

Health. (1984). New Jersey: prentice-hall.

Gaya Chicago

Health. . New Jersey: prentice-hall, 1984. Buku.

Gaya MLA

Health. . New Jersey: prentice-hall, 1984. Buku.

Gaya Turabian

Health. New Jersey: prentice-hall, 1984. Buku.