California Code
CHAPTER 2 - Ascertaining Meaning of Language Used in the Instrument
Section 21121.

21121. All parts of an instrument are to be construed in relation to each other and so as, if possible, to form a consistent whole. If the meaning of any part of an instrument is ambiguous or doubtful, it may be explained by any reference to or recital of that part in another part of the instrument.

(Amended by Stats. 2002, Ch. 138, Sec. 29. Effective January 1, 2003.)