Cita APA (7a ed.)

Wallach, J., Wallach, J., & Kollek, T. (1989). Still smal voices: John and Janet Wallach. With a forew. by Teddy Kollek. Harcourt Brace Jovanovich.

Cita Chicago Style (17a ed.)

Wallach, John, Janet Wallach, y Teddy Kollek. Still Smal Voices: John and Janet Wallach. With a Forew. by Teddy Kollek. San Diego, Calif. [u.a.]: Harcourt Brace Jovanovich, 1989.

Cita MLA (8a ed.)

Wallach, John, et al. Still Smal Voices: John and Janet Wallach. With a Forew. by Teddy Kollek. Harcourt Brace Jovanovich, 1989.