That should be negotiated between the author and publisher in advance, and included in any written agreement.
a. dissolution
treaty
lease agreement
The correct statement about contract is that a contract is an agreement between a buyer and a seller. A contract can be a written or oral agreement.
That is a treaty.
A written agreement between a travel agency and its clients protects both parties. When planning travel, there are many variables that can alter plans and this agreement should address those.
treaty
contract
A agreement is written and signed by two parties - to avoid misunderstandings in the future. A written agreement is a contract. An owner will better try to have an agreement (contract) with a hotel management company, because a hotel is to be managed and guestrooms are to be sold.
The difference between written and unwritten consent is that one is actually written down on paper, and the other is an oral agreement.
It is a verbal or written agreement between 2 consenting adults.