His Understanding yourself through birth order, c1988: CIP t.p. (Clifford E. Isaacson) data sheet (b. 5/17/34) His How to love your children, c1992: CIP t.p. (Clifford E. Isaacson) data sheet (Clifford Edwin Isaacson) SRC:Understanding yourself through birth order / by Clifford Isaacson(Upper Des Moines Counseling Center, c1988)