Cita APA (7th ed.)

-. (1980). Compton's encyclopedia and fact-index vol.23. F.E. Compton Co.

Cita Chicago (17th ed.)

-. Compton's Encyclopedia and Fact-index Vol.23. Chicago: F.E. Compton Co, 1980.

Cita MLA (9th ed.)

-. Compton's Encyclopedia and Fact-index Vol.23. F.E. Compton Co, 1980.