Gaya APA

GULHATI, S, K., DATTA, M. (2005). Geotechnical engineering . New Delhi: Tata McGraw-Hill Publishing Company Limited.

Gaya MLA

GULHATI, Shashi, K.., DATTA, Manoj. "Geotechnical engineering". New Delhi: Tata McGraw-Hill Publishing Company Limited, 2005. Buku.