Citazione Stile APA (7a Edizione)

Vermeer, P. A. (1980). Formulation and analysis of sand deformation problems. s.n.].

Citazione stile Chigago Style (17a edizione)

Vermeer, Pieter Anne. Formulation and Analysis of Sand Deformation Problems. [s.l: s.n.], 1980.

Citatione MLA (9a ed.)

Vermeer, Pieter Anne. Formulation and Analysis of Sand Deformation Problems. s.n.], 1980.