Cita APA (7th ed.)

Byrd , O. E. (1966). Health pheladelphia (4th ed.). Tappan.

Cita Chicago (17th ed.)

Byrd , Oliver E. Health Pheladelphia. 4th ed. Tokyo: Tappan, 1966.

Cita MLA (9th ed.)

Byrd , Oliver E. Health Pheladelphia. 4th ed. Tappan, 1966.