Cita APA (7th ed.)

HORNBY, A., & PARNWELL, E. (1972). Learner's dictionary: Oxford progressive english. Indira.

Cita Chicago (17th ed.)

HORNBY, A.S, i E.C PARNWELL. Learner's Dictionary: Oxford Progressive English. Jakarta: Indira, 1972.

Cita MLA (9th ed.)

HORNBY, A.S, i E.C PARNWELL. Learner's Dictionary: Oxford Progressive English. Indira, 1972.