APA   Click to copy
Bahadur, D., & Dunlap, R. A. (1990). Advances in the physics of quasicrystals. Physics Education.

Chicago/Turabian   Click to copy
Bahadur, D, and RA Dunlap. “Advances in the Physics of Quasicrystals.” Physics Education (1990).

MLA   Click to copy
Bahadur, D., and R. A. Dunlap. “Advances in the Physics of Quasicrystals.” Physics Education, 1990.

@article{bahadur1990a,
  title = {Advances in the physics of quasicrystals},
  year = {1990},
  journal = {Physics Education},
  author = {Bahadur, D and Dunlap, RA}
}