New Post: ISO 690 First Name Alternative change?

I'm using Microsoft office 2007 and the ISO 690First Name Alternative andI would like to modify itfor my thesis. I need the citations to look like:

(Gradeva et al., 2011)

Gradeva, R., Petrov ,G. War and Peace in Rumeli, 15th to beginning of 19th century, Analecta Isisiana C.Istanbul : The Isis Press, 2011. c. 332. 978-975-428-358-7.

not:

(Gradeva, et al., 2011)

Gradeva, Rosica and Petrov, Goran. 2011.War and Peace in Rumeli, 15th to beginning of 19th century, Analecta Isisiana C.Istanbul : The Isis Press, 2011. c. 332. 978-975-428-358-7.