Cite
Preface.
MLA
Chan, Tommy H. T., and Bijan Samali. “Preface.” Advances in Structural Engineering, vol. 15, no. 5, May 2012, pp. i–ii. EBSCOhost, https://doi.org/10.1260/1369-4332.15.5.i.
APA
Chan, T. H. T., & Samali, B. (2012). Preface. Advances in Structural Engineering, 15(5), i–ii. https://doi.org/10.1260/1369-4332.15.5.i
Chicago
Chan, Tommy H. T., and Bijan Samali. 2012. “Preface.” Advances in Structural Engineering 15 (5): i–ii. doi:10.1260/1369-4332.15.5.i.