Cita APA (7th ed.)

Romanoff, M. R. (1991). Language and study skills for learners of English. .Prentice-Hall.

Cita Chicago (17th ed.)

Romanoff, Marjorie R. Language and Study Skills for Learners of English. New Jersey: .Prentice-Hall, 1991.

Cita MLA (8th ed.)

Romanoff, Marjorie R. Language and Study Skills for Learners of English. .Prentice-Hall, 1991.