APA (7th ed.) Citation

Plam, J. J., Sirk, J. C., & Gafurov, B. G. (1968). The languages of Southeast Asia. Fifty years of Soviet Oriental studies.

Chicago Style (17th ed.) Citation

Plam, Jurij Ja., Julo Ch Sirk, and Bobodžan G. Gafurov. "The Languages of Southeast Asia." Fifty Years of Soviet Oriental Studies 1968.

MLA (8th ed.) Citation

Plam, Jurij Ja., et al. "The Languages of Southeast Asia." Fifty Years of Soviet Oriental Studies, 1968.

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