What is the burden of making a reference to the record in the opening brief of an appeal?

that burden, the appellant must provide citations to the record in the opening brief, as "'[t]he reviewing court is not required to make an independent, unassisted study of the record in search of error or grounds to support the judgment.' [Citations.]" (Guthrey v. State of California (1998) 63 Cal.App.4th 1108, 1115.) Accordingly, rule 8.204(a)(1)(C) requires that the brief "[s]upport any reference to a matter in the record by a citation to the volume and page number of the record where the matter appears." Rule 8.204(a)(1)(B) further provides that each contention on appeal must be supported "by argument and, if possible, by citation of authority...."