The track "To Know Him Is to Love Him" appears on the compilation set "Back to Mono" produced by whom? 
Back to Mono (1958–1969): Back to Mono (1958–1969) is a box set (4 compact discs or 5 vinyl LPs) compilation of the recorded work of record producer Phil Spector, through the 1960s, released in 1991 by ABKCO as #7118-2. Back to Mono (1958–1969):  The first track, "To Know Him Is to Love Him," released in 1958, features Spector performing as part of the group the Teddy Bears.
i don't know