Multiple authors, only first one with family in uppercase

pfizz

I am having trouble figuring out how to format a list of author for a the bibliography when I display a book with more than one authors. Only the first author's family should be formatted in uppercase. All the other names should be in lowercase.

Here's what I have:

DÉPATIE, Sylvie, Christian DESSUREAULT et Mario LALANCETTE, Contributions à l’étude du régime seigneurial canadien, LaSalle, Hurtubise HMH, 1987, 290p.

Here's what I need:

DÉPATIE, Sylvie, Christian Dessureault et Mario Lalancette, Contributions à l’étude du régime seigneurial canadien, LaSalle, Hurtubise HMH, 1987, 290p.

Here's my code attached.

Thank you for your help !

damnation

I don't think that is possible.