Cita APA (7th ed.)

Bowman, S. Twayne's United States authors series. Twayne.

Cita Chicago (17th ed.)

Bowman, Sylvia. Twayne's United States Authors Series. Boston: Twayne.

Cita MLA (8th ed.)

Bowman, Sylvia. Twayne's United States Authors Series. Twayne.