Cita APA (7th ed.)

Jespersen, O. (1964). Essentials of English grammar. University of Alabama Press.

Cita Chicago (17th ed.)

Jespersen, Otto. Essentials of English Grammar. University, Ala: University of Alabama Press, 1964.

Cita MLA (9th ed.)

Jespersen, Otto. Essentials of English Grammar. University of Alabama Press, 1964.