Released in 1968, the book The Truth That Leads to Eternal Life was for many years effectively used in studying the Bible with interested ones.
Vēlāk, lai mācītu Bībeli interesentiem, ilgus gadus sekmīgi tika izmantota 1968. gadā iznākusī grāmata The Truth That Leads to Eternal Life (Patiesība, kas var dot mūžīgu dzīvi).