Cita APA (7th ed.)

JESPERSON, O. (1933). Essentials of English grammar. Allen and Unwin.

Cita Chicago (17th ed.)

JESPERSON, Otto. Essentials of English Grammar. London: Allen and Unwin, 1933.

Cita MLA (9th ed.)

JESPERSON, Otto. Essentials of English Grammar. Allen and Unwin, 1933.