At the sound of the beep /
Marilyn Sachs.
APA Citation
Sachs, M. (1990). At the sound of the beep. New York: Dutton Children's Books.
MLA Citation
Sachs, Marilyn. At the Sound of the Beep. New York: Dutton Children's Books, 1990.
Warning: These citations may not always be complete (especially for serials).