Cita APA (7th ed.)

Langton, C. V. N. 1., & Anderson, C. L. 1. (1964). Health principles and practice (4th ed.). s.n.

Cita Chicago (17th ed.)

Langton, Clair Van Norman 1895, i Carl Leonard 1901 Anderson. Health Principles and Practice. 4th ed. Saint Louis: s.n, 1964.

Cita MLA (9th ed.)

Langton, Clair Van Norman 1895, i Carl Leonard 1901 Anderson. Health Principles and Practice. 4th ed. s.n, 1964.