Esther M. Zimmer Lederberg
Spivack, Al; Spivack, Anita: June, 1981

  1. Spivack, Al; Lederberg, Esther; Spivack, Anita; and guests: June, 1981
  2. Spivack, Al; Spivack, Anita; and guests: June, 1981