Byrd, O. E. (1963). Health. [s.n].
Cita Chicago (17th ed.)Byrd, Oliver E. Health. Calif: [s.n], 1963.
Cita MLA (9th ed.)Byrd, Oliver E. Health. [s.n], 1963.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)