Leslie, Frances M., Layla Azam, Kathy Gallardo, Kathryn O’Leary, Ryan Franke, and Shahrdad Lotfipour. "Nicotinic Receptor Regulation of Developing Catecholamine Systems." Brain Development: Normal Processes and the Effects of Alcohol and Nicotine. : Oxford University Press, 2006-05-25. Oxford Scholarship Online. 2010-01-01. Date Accessed 23 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195183139.001.0001/acprof-9780195183139-chapter-23>.
Leslie, F., Azam, L., Gallardo, K., O’Leary, K., Franke, R., & Lotfipour, S.(2006-05-25). Nicotinic Receptor Regulation of Developing Catecholamine Systems. In Brain Development: Normal Processes and the Effects of Alcohol and Nicotine. : Oxford University Press. Retrieved 23 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195183139.001.0001/acprof-9780195183139-chapter-23.
Leslie, Frances M., Layla Azam, Kathy Gallardo, Kathryn O’Leary, Ryan Franke, and Shahrdad Lotfipour. "Nicotinic Receptor Regulation of Developing Catecholamine Systems." In Brain Development: Normal Processes and the Effects of Alcohol and Nicotine. : Oxford University Press, 2006-05-25. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195183139.001.0001/acprof-9780195183139-chapter-23.
Leslie FM, Azam L, Gallardo K, O’Leary K, Franke R, Lotfipour S. Nicotinic Receptor Regulation of Developing Catecholamine Systems. In: Miller MW. Brain Development: Normal Processes and the Effects of Alcohol and Nicotine. Oxford University Press; 2006. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195183139.001.0001/acprof-9780195183139-chapter-23. Accessed May 23, 2013.