Cita APA (7th ed.)

Yarian, R. (1989). Health 89/90 (10ª ed.). The Dushkin.

Cita Chicago (17th ed.)

Yarian, Richard. Health 89/90. 10ª ed. The Dushkin, 1989.

Cita MLA (9th ed.)

Yarian, Richard. Health 89/90. 10ª ed. The Dushkin, 1989.