How to Insert Multiple table data at same time?

I hace 4 table in my database

1. Publisher Table

   Attributes : ID (primary key,autoincrement) ,Name,City,Address,State

2 Author Table

   Attributes : ID (primary key,autoincrement),Firstname,Lastname

3 Book Table

   Attributes: ID(primary key,autoincrement),title,PublisherID (Foreign Key with Publisher ID)

 4.Book_Author_MAP Table

   Attributes: ID(primary key,autoincrement),BookID,AuthorID(Foreign Key with Author ID)

 

In all tables ID is only unique no one data is unique.

 

Now I have single form in ASP.net that takes input  Publisher-> Name,City,Address,State,

                                                                        Authors -> Firstname,Lastname,

                                                                        Book -> Title

 

 

All the field will show on browser But when I submit the form I want to store all value in all table. But when firstly I save Publiser values but how can i find ID of publisher at that time because No one data in unique without ID and Book table ID attributes required publisher ID that time.How can I fetch ID of publisher.