APA (7th ed.) Citation

Newbury, R. L., Belz, D. J., & Grubb, R. G. (1981). Soil survey of Allegheny County, Pennsylvania. The Service.

Chicago Style (17th ed.) Citation

Newbury, Raymond L., David J. Belz, and Robert G. Grubb. Soil Survey of Allegheny County, Pennsylvania. [Washington, D.C.]: The Service, 1981.

MLA (9th ed.) Citation

Newbury, Raymond L., et al. Soil Survey of Allegheny County, Pennsylvania. The Service, 1981.