In Chapter 6, page 370 of "Using ClarisWorks" by Laurie Miller Love, there is an error in the direction on converting a relative reference cell to a absolute reference cell. The instruction is step 2 states:
"Hold down the Option Key as you click in cell E9. By Option-clicking, you can automatically convert the reference to cell E9 from relative to absolute."
The correct key sequence should be Command-Option and click.