Smith, M. R., & Collis, L. (1998). Aggregates: Sand, gravel and crushed rock aggregates for construction purposes (2nd ed.). Geological Society.
Chicago Style (17th ed.) CitationSmith, M. R., and L. Collis. Aggregates: Sand, Gravel and Crushed Rock Aggregates for Construction Purposes. 2nd ed. London: Geological Society, 1998.
MLA (8th ed.) CitationSmith, M. R., and L. Collis. Aggregates: Sand, Gravel and Crushed Rock Aggregates for Construction Purposes. 2nd ed. Geological Society, 1998.
Warning: These citations may not always be 100% accurate.