Official source record
Rule 702.30d: multiple source entries
The historical Rules effective 1 October 2009 contains 2 entries with this printed citation. They are presented below in source order; this site does not select between them.
Entry 1
Objects with more than one kicker cost have abilities that each correspond to a specific kicker cost. They contain the phrases "if it was kicked with its [A] kicker" and "if it was kicked with its [B] kicker," where A and B are the first and second kicker costs listed on the card, respectively. Each of those abilities is linked to the appropriate kicker ability.
Entry 2
If part of a spell's ability has its effect only if that spell was kicked, and that part of the ability includes any targets, the spell's controller chooses those targets only if that spell was kicked. Otherwise, the spell is cast as if it did not have those targets. See rule 601.2c.