Wendy Harpham: When a parent has cancer - a guide to caring for your children. Including a special book for children, Becky and the worry cup. Harper Collins 1997. 0-06018709-3. $24. Wendy Harpham/Jonas Kulikauskas: Becky and the worry cup - a children's book about a parent's cancer. Harper Perennial 1997. 0-06095211-3. Beatrice Hofman Hoek/Melanie Jongsma: Cancer lives at our hose - help for the family. Baker Book 1997. 0-80105735-3. $9. Elise Needell Babcock: When life becomes precious - a guide for loved ones and friends of cancer patients. Bantam 1997. 0-55337869-4. $14. 9095 ZZ: Krebs in der Familie. O''st. Krebshilfe, Internet 1996.