Cita APA (7a ed.)

Butterfield, R., Houlsby, G., & Gottardi, G. (1998). Standardized sign conventions and notation for generally loaded foundations (vol 47, pg 1051, 1997).

Cita Chicago Style (17a ed.)

Butterfield, R., G. Houlsby, y G. Gottardi. Standardized Sign Conventions and Notation for Generally Loaded Foundations (vol 47, Pg 1051, 1997). 1998.

Cita MLA (9a ed.)

Butterfield, R., et al. Standardized Sign Conventions and Notation for Generally Loaded Foundations (vol 47, Pg 1051, 1997). 1998.