Estes, M. K., & Graham, D. Y. (1979). Epidemic viral gastroenteritis(). Am J Med.
Chicago Style aipamenaEstes, Mary Kolb, and David Yates Graham. "Epidemic Viral Gastroenteritis()." Am J Med 1979.
MLA aipamenaEstes, Mary Kolb, and David Yates Graham. "Epidemic Viral Gastroenteritis()." Am J Med 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.