APA (7th ed.) Citation

Haagen, E. (1990). Soil survey of Skamania County area, Washington. The Service.

Chicago Style (17th ed.) Citation

Haagen, Edward. Soil Survey of Skamania County Area, Washington. [Washington, D.C.?]: The Service, 1990.

MLA (9th ed.) Citation

Haagen, Edward. Soil Survey of Skamania County Area, Washington. The Service, 1990.

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