Martin, M. Ann 1955. Kristy's Great Idea #1 / Ann M. Martin - New York : Scholastic, ©1986. - 153 pages : illustrations ; 20 cm. - Baby-Sitters Club, 1. . 4-6 Kristy decides to form a Baby-sitters Club with her friends, Claudia, Mary Anne, and Stacy, but they run into unexpected problems which threaten to break up the club. ISBN: 0590224735 Dewey Class. No.: 813 / MAR 1986