APA-čujuhus (7. p.)
Introductory geotechnical engineering / Chottopadhyay, B.C: Vikas Pub.
Chicago-čujuhus (17. p.)
Introductory Geotechnical Engineering / Chottopadhyay, B.C: Vikas Pub.
MLA-čujuhus (9. p.)
Introductory Geotechnical Engineering / Chottopadhyay, B.C: Vikas Pub.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.