APA (7th ed.) Citation

Lombard, S. J., & Purnell, H. C. (1968). Yao-English dictionary.

Chicago Style (17th ed.) Citation

Lombard, Sylvia J., and Herbert C. Purnell. Yao-English Dictionary. Ithaca, N.Y, 1968.

MLA (8th ed.) Citation

Lombard, Sylvia J., and Herbert C. Purnell. Yao-English Dictionary. 1968.