How you format your in-text citations and reference list will depend on your chosen citation/referencing style. There are two main styles:
Examples are given below:
Allen, P. and Chatterton, T. (2013) 'Carbon reduction scenarios for 2050: An explorative analysis of public preferences', Energy Policy, 63(Supplement C), pp. 796-808.
Abdin, Z., Alim, M. A., Saidur, R., Islam, M. R., Rashmi, W., Mekhilef, S. and Wadi, A. (2013) 'Solar energy harvesting with the application of nanotechnology', Renewable and Sustainable Energy Reviews, 26(Supplement C), pp. 837-852.
Within these two broad groupings, there are thousands of different variations in style, i.e.:
You do not need to learn lots of different styles, you just need to: