I appreciate it if you let me know which package and bibliography style should be used to have the bibliography with the following properties:
1- citation in the text should be like this: (Doe et al., 2000)
2- alphabetical sort of the references based on the last name of the first author
3- having this pattern for references with more than one author without abbreviating the first names:
LastName_1, FirstName_1, FirstName_2 LastName_2, and FirstName_3 LastName_3
such as:
Doe, John, David Dane, and Marry Dewy (2000). "This and that". In: Journal of Deep Understanding of Things.
biblatex'sauthoryearstyle might also be of interest to you (see this example document; also have a look at thebiblatexdocumentation).biblatexis very versatile and easy-to-costomise, but also slightly hard to get one's head round at first. See alsobiblatexfor idiots and What to do to switch tobiblatex?. – moewe Dec 08 '13 at 18:07authoryearstyle does quite exactly what you want save for the full list of names in the bibliography which can be achieved bymaxbibnames=999. – moewe Dec 08 '13 at 18:22