APA (7th ed.) Citation

LADO, M. (1990). Improving Your English. Wira Sari.

Chicago Style (17th ed.) Citation

LADO, M.J. Improving Your English. Wira Sari, 1990.

MLA (8th ed.) Citation

LADO, M.J. Improving Your English. Wira Sari, 1990.

Warning: These citations may not always be 100% accurate.