Cita APA (7th ed.)

Fencl, S. C., Griffin, D. M., & Shay, J. R. Language: Structure and use.

Cita Chicago (17th ed.)

Fencl, Shirley C., Dorothy M. Griffin, i James R. Shay. Language: Structure and Use.

Cita MLA (8th ed.)

Fencl, Shirley C., et al. Language: Structure and Use.