Byrd, O. E. (1963). Health. [s.n].
Chicago Style aipamenaByrd, Oliver E. Health. Calif: [s.n], 1963.
MLA aipamenaByrd, Oliver E. Health. [s.n], 1963.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
Byrd, O. E. (1963). Health. [s.n].
Chicago Style aipamenaByrd, Oliver E. Health. Calif: [s.n], 1963.
MLA aipamenaByrd, Oliver E. Health. [s.n], 1963.