Rakel, R. E. (1979). The yearbook of family practice 1979. Year Book Medical.
Cita Chicago (17th ed.)Rakel, Robert E. The Yearbook of Family Practice 1979. Year Book Medical, 1979.
Cita MLA (9th ed.)Rakel, Robert E. The Yearbook of Family Practice 1979. Year Book Medical, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.