Wallach, J., Wallach, J., & Kollek, T. (1989). Still smal voices: John and Janet Wallach. With a forew. by Teddy Kollek. Harcourt Brace Jovanovich.
Lua i Stíl Chicago (17ú heag.)Wallach, John, Janet Wallach, agus Teddy Kollek. Still Smal Voices: John and Janet Wallach. With a Forew. by Teddy Kollek. San Diego, Calif. [u.a.]: Harcourt Brace Jovanovich, 1989.
Lua MLA (8ú heag.)Wallach, John, et al. Still Smal Voices: John and Janet Wallach. With a Forew. by Teddy Kollek. Harcourt Brace Jovanovich, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.