Rule for Call Number

[Prashant Dinkar Kumbhar]

Dear Professionals,
Can anybody tell me what is the rule for call number in case of missing author, editor or translator? What shall we put in the call number?

For example

What to put after the classification no 610.7903/---

[Nirmala Kumari]

sir we can put  title as a author and titles first three leters put after classification number

[Prashant Dinkar Kumbhar]

Thank you Nirmala Madam for your valuable suggestion. But there is a confusion as in Mumbai few of my friends put publisher's first three letters after the classification number

[Nirmala Kumari]

sir according to  AACR=2 in case missing author,editor,translator then we put  title as a author and then put titles three letters after the classification if  govt. press published then put three letters of publisher

[Prashant Dinkar Kumbhar]

Thank you Nirmala madam for your opinion. But I want more opinion on this post from other professionals also. So I kindly request you all to give your views/ideas on my post.
Thank you