APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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