Industry standard for film credits

[jojogirl]

Can anyone point me in the direction of correctly listing credits for a low budget SAG signatory film? Specifically opening title credits and end credits for cast, crew and all the important players on the project. I realize the unique and creative way it is displayed is one thing, agent negotiating for actors and various crew is another in terms of when each one is listed, but is there a simplified standard before negotiations ($$) set in? Any websites, books, trade guides, etc and feedback most welcome. Appreciate it.