APA (7th ed.) Citation

Peng He, Liuying Sun, Zhen Wang, & Universidad Nacional de Colombia. Departamento de Geociencias. Direct shear test of unsaturated soil.

Chicago Style (17th ed.) Citation

Peng He, Liuying Sun, Zhen Wang, and Universidad Nacional de Colombia. Departamento de Geociencias. Direct Shear Test of Unsaturated Soil.

MLA (9th ed.) Citation

Peng He, et al. Direct Shear Test of Unsaturated Soil.

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