APA (7th ed.) Citation

Yeh, P. T. (1961). Airphoto interpretation of engineering soils of Dekalb County, Indiana. Purdue University.

Chicago Style (17th ed.) Citation

Yeh, P. T. Airphoto Interpretation of Engineering Soils of Dekalb County, Indiana. Lafayette: Purdue University, 1961.

MLA (9th ed.) Citation

Yeh, P. T. Airphoto Interpretation of Engineering Soils of Dekalb County, Indiana. Purdue University, 1961.

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