Cite

APA
Quintero-Pérez, M., Wall, T. E., Hoekstra, S., & Bethlem, H. L. (2014). Preparation of an ultra-cold sample of ammonia molecules for precision measurements. Journal of Molecular Spectroscopy, 300, 112–115.

Chicago/Turabian
Quintero-Pérez, Marina, Thomas E. Wall, Steven Hoekstra, and Hendrick L. Bethlem. “Preparation of an Ultra-Cold Sample of Ammonia Molecules for Precision Measurements.” Journal of Molecular Spectroscopy 300 (2014): 112–115.

MLA
Quintero-Pérez, Marina, et al. “Preparation of an Ultra-Cold Sample of Ammonia Molecules for Precision Measurements.” Journal of Molecular Spectroscopy, vol. 300, 2014, pp. 112–15.