Aragon, G. T., & Bayan, F. B. (1977). The physician and population change. s.l.].
Cita Chicago (17th ed.)Aragon, Gloria T., i Flora B. Bayan. The Physician and Population Change. [s.n: s.l.], 1977.
Cita MLA (9th ed.)Aragon, Gloria T., i Flora B. Bayan. The Physician and Population Change. s.l.], 1977.
Atenció: Aquestes cites poden no estar 100% correctes.