Cita APA (7a ed.)

Sprug, J. W. (1971). Index. Hawthorn Books, Publishers.

Cita Chicago Style (17a ed.)

Sprug, Joseph W. Index. New York: Hawthorn Books, Publishers, 1971.

Cita MLA (9a ed.)

Sprug, Joseph W. Index. Hawthorn Books, Publishers, 1971.