APA (7th ed.) Citation

Bird, B. M., Coe, G. D., & Richardson, A. C. (1931). Washability studies of Mary Lee bed at Hull mine, Dora, Ala. [publisher not identified].

Chicago Style (17th ed.) Citation

Bird, Byron Matthew, G. Dale Coe, and A. C. Richardson. Washability Studies of Mary Lee Bed at Hull Mine, Dora, Ala. Washington, D.C.: [publisher not identified], 1931.

MLA (9th ed.) Citation

Bird, Byron Matthew, et al. Washability Studies of Mary Lee Bed at Hull Mine, Dora, Ala. [publisher not identified], 1931.