Harold M. Shilberg, 58, of Bonita, Calif. Died Nov. 10.  Born in Bristol, he was the son of Dr. Sidney and Pearl (Netupsky) Shilberg. In addition to his parents, he survived by his daughter, Emily, of El Cajon, Calif.; his brother, Nathan Shilberg of El Cajon, Calif.; his sister Dr. Linda Shilberg-Aronowitz (Mark Aronowitz) of Rocky Hill; and his nephew, Ethan Aronowitz of Rocky Hill.