Whitlow, R. (1999). Basic soil mechanics. Longman.
Chicago Style aipamenaWhitlow, R. Basic Soil Mechanics. Longman, 1999.
MLA aipamenaWhitlow, R. Basic Soil Mechanics. Longman, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Whitlow, R. (1999). Basic soil mechanics. Longman.
Chicago Style aipamenaWhitlow, R. Basic Soil Mechanics. Longman, 1999.
MLA aipamenaWhitlow, R. Basic Soil Mechanics. Longman, 1999.