HOUGHTON A.R. (1997). MAKING SENSE OF EGG. ARNOLD.
Chicago Style aipamenaHOUGHTON A.R. MAKING SENSE OF EGG. NEW YORK: ARNOLD, 1997.
MLA aipamenaHOUGHTON A.R. MAKING SENSE OF EGG. ARNOLD, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.