Butterfield, R., Houlsby, G., & Gottardi, G. (1998). Standardized sign conventions and notation for generally loaded foundations (vol 47, pg 1051, 1997).
Citazione stile Chigago Style (17a edizione)Butterfield, R., G. Houlsby, e G. Gottardi. Standardized Sign Conventions and Notation for Generally Loaded Foundations (vol 47, Pg 1051, 1997). 1998.
Citatione MLA (9a ed.)Butterfield, R., et al. Standardized Sign Conventions and Notation for Generally Loaded Foundations (vol 47, Pg 1051, 1997). 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.