Cita APA (7th ed.)

CROWELL, T. L. (1987). Index to modern english. McGraw-Hill.

Cita Chicago (17th ed.)

CROWELL, Thomas Lee. Index to Modern English. New York: McGraw-Hill, 1987.

Cita MLA (9th ed.)

CROWELL, Thomas Lee. Index to Modern English. McGraw-Hill, 1987.