I use the harvard referencing style.
One of our assignment instructions is:
The reference list should be in alphabetical order
Lets use the following references as an example
Kopecky, J. and Simperl, E., 2008. Semantic Web Service Offer Discovery for E-commerce.
Sanvido, F., Sanchez, D., Mendoza, A. and Lopez, A., 2011. Dynamic Negotiation Layer for Secure Semantic Service Oriented Architectures.
Following the instruction I was given to order the references, is it generally implied that I should order the references by the first authors surname: Kopecky then Sanvido.
Or is it implied that I should order by the paper titles: "Dynamic Negotiation Layer..." then "Semantic Web Service..."