APA (7th ed.) Citation

Matthei, A., & Matthei, W. (1948). Direct shear tests on soils.

Chicago Style (17th ed.) Citation

Matthei, A., and W. Matthei. Direct Shear Tests on Soils. 1948.

MLA (8th ed.) Citation

Matthei, A., and W. Matthei. Direct Shear Tests on Soils. 1948.

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