APA (7th ed.) Citation

Smith, L., & Tiller, K. (1977). A modified procedure for the more rapid determination of the clay content (<2um) of soils. CSIRO.

Chicago Style (17th ed.) Citation

Smith, L.H, and K.G Tiller. A Modified Procedure for the More Rapid Determination of the Clay Content (<2um) of Soils. [Glen Osmond?]: CSIRO, 1977.

MLA (9th ed.) Citation

Smith, L.H, and K.G Tiller. A Modified Procedure for the More Rapid Determination of the Clay Content (<2um) of Soils. CSIRO, 1977.