Butterfield, R., Houlsby, G., & Gottardi, G. (1998). Standardized sign conventions and notation for generally loaded foundations (vol 47, pg 1051, 1997).
Chicago Style (17th ed.) CitationButterfield, R., G. Houlsby, and G. Gottardi. Standardized Sign Conventions and Notation for Generally Loaded Foundations (vol 47, Pg 1051, 1997). 1998.
MLA (9th ed.) CitationButterfield, R., et al. Standardized Sign Conventions and Notation for Generally Loaded Foundations (vol 47, Pg 1051, 1997). 1998.
Warning: These citations may not always be 100% accurate.