Gaya APA

Nontji, A., Billings, M, P. (s.a.). Structural Geology (3rd Ed.). [s.l.]: Prentice-Hall.

Gaya MLA

Nontji, Anugerah., Billings, Marland, P.. "Structural Geology". 3rd Ed. [s.l.]: Prentice-Hall, s.a.. Text.