source: Either of us may terminate this Agreement, with or without cause, on one month's written notice, or immediately in the case of breach of a material term of this Agreement.
target: Either of us may terminate this Agreement, with or without a cause. There must be one month's written notice unless there is a breach of a material term in this Agreement. In this event, the Agreement may be terminated immediately.
references: Either of us may terminate this Agreement, with or without a cause. There must be one month's written notice unless there is a breach of a material term in this Agreement. In this event, the Agreement may be terminated immediately.