HEAD. (1992). Manual of soil laboratory testing volume 1: Soil classification and compaction tests (2nd ed.). London: Pentech Press.
Chicago Style CitationHEAD. Manual of Soil Laboratory Testing Volume 1: Soil Classification and Compaction Tests. 2nd ed. London: Pentech Press, 1992.
MLA CitationHEAD. Manual of Soil Laboratory Testing Volume 1: Soil Classification and Compaction Tests. 2nd ed. London: Pentech Press, 1992.
Warning: These citations may not always be 100% accurate.