APA   Click to copy
Dubé, A. K., & McEwen, R. (2015). Do Gestures Matter? The Implications of Using Touchscreen Devices in Mathematics Instruction. Learning and Instruction, 40, 89–98.

Chicago/Turabian   Click to copy
Dubé, A.K., and R. McEwen. “Do Gestures Matter? The Implications of Using Touchscreen Devices in Mathematics Instruction.” Learning and Instruction 40 (2015): 89–98.

MLA   Click to copy
Dubé, A. K., and R. McEwen. “Do Gestures Matter? The Implications of Using Touchscreen Devices in Mathematics Instruction.” Learning and Instruction, vol. 40, 2015, pp. 89–98.

@article{a2015a,
  title = {Do Gestures Matter? The Implications of Using Touchscreen Devices in Mathematics Instruction},
  year = {2015},
  journal = {Learning and Instruction},
  pages = {89-98},
  volume = {40},
  author = {Dubé, A.K. and McEwen, R.}
}