APA   Click to copy
Abd, A. A., Kareem, M. Q., & Naji, S. Z. (2018). Performance analysis of shell and tube heat exchanger: Parametric study. Case Studies in Thermal Engineering, 12, 563–568.

Chicago/Turabian   Click to copy
Abd, Ammar Ali, Mohammed Qasim Kareem, and Samah Zaki Naji. “Performance Analysis of Shell and Tube Heat Exchanger: Parametric Study.” Case studies in thermal engineering 12 (2018): 563–568.

MLA   Click to copy
Abd, Ammar Ali, et al. “Performance Analysis of Shell and Tube Heat Exchanger: Parametric Study.” Case Studies in Thermal Engineering, vol. 12, Elsevier, 2018, pp. 563–68.

@article{abd2018a,
  title = {Performance analysis of shell and tube heat exchanger: Parametric study},
  year = {2018},
  journal = {Case studies in thermal engineering},
  pages = {563--568},
  publisher = {Elsevier},
  volume = {12},
  author = {Abd, Ammar Ali and Kareem, Mohammed Qasim and Naji, Samah Zaki}
}