(2000). Health. New York: McGraw - Hill.
Chicago Style aipamenaHealth. New York: McGraw - Hill, 2000.
MLA aipamenaHealth. New York: McGraw - Hill, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(2000). Health. New York: McGraw - Hill.
Chicago Style aipamenaHealth. New York: McGraw - Hill, 2000.
MLA aipamenaHealth. New York: McGraw - Hill, 2000.