Complex sentence: In the 1970's Bradford and Vena returned to Hudson's Hopeand in 1972 he wrote the book "One Acre & Security" in which he discusses how to live organically on only 1 acre of land.
Split into simpler sentences: In the 1970's Bradford and Vena returned to Hudson's Hope. In 1972 he wrote the book "One Acre & Security" in which he discusses how to live organically on only 1 acre of land.