Tohutoro APA (7th ed.)
Norbury, D. (2016). Soil and rock description in engineering practice (Second edition.). Whittles Publishing.
Tohutoru Kātū Chicago (17th ed.)
Norbury, David. Soil and Rock Description in Engineering Practice. Second edition. Dunbeath, Scotland, UK: Whittles Publishing, 2016.
Tohutoro MLA (9th ed.)
Norbury, David. Soil and Rock Description in Engineering Practice. Second edition. Whittles Publishing, 2016.
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