Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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