Smith, G. N. (1987). Guide to Site Investigation. Geotechnical Control Office, Civil Engineering Services Department.
Citazione stile Chigago Style (17a edizione)Smith, G. N. Guide to Site Investigation. Hong Kong: Geotechnical Control Office, Civil Engineering Services Department, 1987.
Citatione MLA (9a ed.)Smith, G. N. Guide to Site Investigation. Geotechnical Control Office, Civil Engineering Services Department, 1987.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.