Feldman, M. Et Al. 2012. Combined soil moisture meter and penetrometer. Geotechnical Testing Journal , vol.35, no.3 , 437-440.

Feldman, M., Hah, D., Hanifa, K., & Zhang, Z., (2012). Combined soil moisture meter and penetrometer. Geotechnical Testing Journal , vol.35, no.3, 437-440.

Feldman, Martin Et Al. "Combined soil moisture meter and penetrometer," Geotechnical Testing Journal , vol.35, no.3, 437-440, 2012

Feldman, Martin Et Al. "Combined soil moisture meter and penetrometer." Geotechnical Testing Journal , vol.35, no.3, pp.437-440, 2012

Feldman, M. Et Al. (2012) . "Combined soil moisture meter and penetrometer." Geotechnical Testing Journal , vol.35, no.3, pp.437-440.

@article{article, author={Martin Feldman Et Al. }, title={Combined soil moisture meter and penetrometer}, journal={Geotechnical Testing Journal}, year=2012, pages={437-440} }