Cita APA (7th ed.)

.Collen, M. F. (1974). Hospital computer systems. John Wiley & Sons.

Cita Chicago (17th ed.)

.Collen, Morris F. Hospital Computer Systems. New York: John Wiley & Sons, 1974.

Cita MLA (9th ed.)

.Collen, Morris F. Hospital Computer Systems. John Wiley & Sons, 1974.